496 results on '"Dagnra A"'
Search Results
2. Epidemiological and virological surveillance of the prevention of mother-to-child transmission of HIV among pregnant women in Togo
- Author
-
Tegueni, Kokou, Gbeasor-Komlanvi, Fifonsi Adjidossi, Adama, Oumarou I. Wone, Sadio, Arnold Junior, Amenyah-Ehlan, Amivi Phyllis, Dagnra, Claver Anoumou, and Ekouevi, Didier Koumavi
- Published
- 2024
- Full Text
- View/download PDF
3. Street adolescents in low income setting exposed to hepatitis B and C, and disadvantaged by lifestyle: a Togolese cross-sectional study
- Author
-
Arnold Junior Sadio, Valentine Marie Ferré, Oumarou I. Wone Adama, Harold Régis Kouanfack, Anoumou Claver Dagnra, Amivi P. Amenyah-Ehlan, Laté Mawuli Lawson-Ananissoh, Diane Descamps, Charlotte Charpentier, and Didier Koumavi Ekouevi
- Subjects
Lifestyle ,Hepatitis B and C viruses ,Immunization profile ,Street adolescents ,Togo ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background In Togo, few data are available on viral hepatitis in street adolescents, a vulnerable population due to their lifestyle. The aim of this study was to describe the lifestyle of street adolescents (sexual practices and drug use), to estimate the prevalence of hepatitis B and C viruses, and to describe their HBV immunization profile in Togo. Methods A cross-sectional study was conducted in Lomé (Togo) in July 2021. Street adolescents aged between 13 and 19 years were included. A questionnaire was used to document lifestyle. ELISA tests were performed for Hepatitis B surface antigen (HBsAg), Hepatitis B core and surface antibodies (anti-HBc, anti-HBs), and antibodies against hepatitis C virus (anti-HCV). Results A total of 299 adolescents (5.4% female) with a median age of 15 years (IQR: 14–17) were included. Of these, 70.6% (211/299) were sexually active and 70.6% (149/211) had not used a condom during their last sexual intercourse. Drug use was reported by 42.1% of the adolescents. The most used substances were cannabis (39.0%), cocaine (36.6%), glue solvents (19.5%), and tramadol (11.4%). However, cocaine use may have been overestimated due to information bias. Current HBV infection (HBsAg+) was detected in 3.7% (95%CI: 1.9–6.5) of the adolescents. Isolated anti-HBc + was present in 5.3%. All three HBV markers (HBsAg, anti-HBs, and anti-HBc) were negative in 71.6% of adolescents. Anti-HCV was detected in 4.7% of adolescents. Conclusion Nearly one in 10 street adolescents has markers for HBV contact/current infection, and approximately 72% of street adolescents may still be infected with HBV, as they have no HBV markers. HCV is also circulating in this population. Given the reported high-risk sexual practices and high levels of drug use, there is an urgent need to develop integrated strategies to prevent infections, including HBV, and drug dependence in this population.
- Published
- 2024
- Full Text
- View/download PDF
4. Epidemiological and virological surveillance of the prevention of mother-to-child transmission of HIV among pregnant women in Togo
- Author
-
Kokou Tegueni, Fifonsi Adjidossi Gbeasor-Komlanvi, Oumarou I. Wone Adama, Arnold Junior Sadio, Amivi Phyllis Amenyah-Ehlan, Claver Anoumou Dagnra, and Didier Koumavi Ekouevi
- Subjects
Mother-to child transmission ,HIV ,Viral load ,Togo ,Gynecology and obstetrics ,RG1-991 - Abstract
Summary Background In 2015, Togo introduced the “test-and-treat” strategy for the prevention of mother-to-child transmission (PMTCT) of HIV. Pediatric HIV infection remains a public health problem in Togo, with a mother-to-child transmission (MTCT) rate of 3.6% in 2020. This study aimed to estimate cases of HIV seroconversion during pregnancy and to identify pregnant women at high risk of transmitting HIV to their children in Lomé, Togo. Methods A descriptive cross-sectional study was carried out from 18 March to 22 May 2022 among women who had given birth in five maternity units providing PMTCT services in Lomé. Umbilical cord blood samples were taken from the maternal side by midwives after delivery. HIV serology was performed in the laboratory using the Alere™ HIV Combo SET and First Response HIV 1–2. Card Test version 2.0. A sample was considered positive if both tests were positive. The HIV-1 viral load in HIV-1-positive samples was measured using Cobas/Roche 4800 equipment. Information on the women was extracted from maternal antenatal records and antenatal consultation registers. Results A total of 3148 umbilical cord blood samples (median maternal age: 28 years (interquartile range [24–32]) were collected. Among them, 99.3% (3145/3148) had presented for at least one antenatal clinic visit before giving birth, and 78.7% (2456/3122) had presented for at least four visits. One hundred and twenty-one (121) cord samples were HIV-1 positive, representing a seroprevalence of 3.8% (95% CI = [3.2–4.6]). Among them, 67.8% (82/121) were known HIV-positive before the current pregnancy, 29.7 (36/121) were diagnosed as HIV-positive at the antenatal visits and 2.5% (3/121) were diagnosed as HIV-positive in the delivery room. Of the HIV-positive women, 85.9% (104/121) were on ARV treatment before delivery. The viral load was
- Published
- 2024
- Full Text
- View/download PDF
5. Profil bacteriologique des sinusites maxillaires chroniques suppurees d'origine nasale de l'adulte au CHU Tokoin de Lomé
- Author
-
Amana Bathokédéou, Dagnra Anoumou Yaotse, Pegbessou Essobozou, and Kpemissi Eyawelhon
- Subjects
sinusite ,maxillaire ,épidémiologie ,microbiologie ,Medicine - Abstract
Le but de cette étude était de déterminer les germes responsables des sinusites maxillaires chroniques et leur sensibilité aux antibiotiques usuels. Il s'agit d'une étude prospective menée sur 24 mois chez des patients reçus pour sinusite maxillaire chronique suppurée d'origine nasale. L'examen bactériologique était réalisé sur des prélèvements de pus obtenus par ponction des sinus. Sur les 100 prélèvements, 64 cultures (64%) étaient positives, dont 60 cultures étaient monomicrobiennes. Les germes les plus fréquemment isolés étaient le Streptococcus pneumoniae dans 20 cas (27.78%), le Staphylococcus aureus dans 15 cas (20.83%) et les streptocoques du groupe A dans 10 cas (13.89%). Les souches de Streptococcus pneumoniae étaient toutes sensible aux céphalosporines, aux quinolones, aux macrolides et à l'oxacilline. Les souches de Staphylococcus aureus avaient présenté 93.34% de résistance à la pénicilline G. Aucune souche n'était résistante à l'Oxacilline. Les streptocoques du groupe A avaient une sensibilité de 80 à 100% aux bétalactamines et aux macrolides, et 60% aux quinolones. L'écologie bactérienne des sinusites maxillaires chroniques suppurées de l'adulte est dominée par le Streptococcus pneumoniae et le Staphylococcus aureus. Ces germes sont sensibles aux quinolones et aux aminosides.
- Published
- 2013
- Full Text
- View/download PDF
6. Development and field evaluation in African and Asian countries of an hepatitis B virus PCR on open polyvalent platforms to determine treatment eligibility: results from the “Agence Nationale de Recherche sur le Sida et les hépatites” 12327 study
- Author
-
Kania, Dramane, Nouhin, Janin, Bolloré, Karine, Njouom, Richard, Toni, Thomas d'Aquin, Maiga, Almoustapha Issiaka, Toure-Kane, Coumba, Ngo-Giang-Huong, Nicole, Dagnra, Anoumou, Chuong Le, Duy Hoang, Lunel-Fabiani, Françoise, Castera-Guy, Joany, Rubbo, Pierre-Alain, Pisoni, Amandine, Plantier, Jean-Christophe, and Tuaillon, Edouard
- Published
- 2024
- Full Text
- View/download PDF
7. Correction: SARS-CoV-2 antibody seroprevalence in Togo: a national cross-sectional household survey, May–June, 2021
- Author
-
Konu, Yao Rodion, Condé, Siaka, Gbeasor-Komlanvi, Fifonsi, Sadio, Arnold Junior, Tchankoni, Martin Kouame, Anani, Joel, Bitty-Anderson, Alexandra, Mirindi, Bisimwa Ruhana, Diallo, Fatoumata Binta Tidiane, MIjiyawa, Moustapha, Dagnra, Anoumou Claver, and Ekouevi, Didier Koumavi
- Published
- 2023
- Full Text
- View/download PDF
8. High SARS-CoV-2 seroprevalence among street adolescents in Lomé, Togo, 2021
- Author
-
Sadio, Arnold Junior, Ferré, Valentine Marie, Konu, Rodion Yao, Dagnra, Anoumou Claver, Descamps, Diane, Ekouevi, Didier Koumavi, and Charpentier, Charlotte
- Published
- 2023
- Full Text
- View/download PDF
9. Opinion review of drug resistant tuberculosis in West Africa: tackling the challenges for effective control
- Author
-
Isaac Darko Otchere, Adwoa Asante-Poku, Kodjo Francis Akpadja, Awa Ba Diallo, Adama Sanou, Prince Asare, Stephen Osei-Wusu, Nneka Onyejepu, Bassirou Diarra, Yaotsè Anoumou Dagnra, Aderemi Kehinde, Martin Antonio, and Dorothy Yeboah-Manu
- Subjects
drug resistance ,tuberculosis ,West Africa ,challenges ,control measures ,collaboration ,Public aspects of medicine ,RA1-1270 - Abstract
Drug-resistant (DR) tuberculosis (TB) is a major public health concern globally, complicating TB control and management efforts. West Africa has historically faced difficulty in combating DR-TB due to limited diagnostic skills, insufficient access to excellent healthcare, and ineffective healthcare systems. This has aided in the emergence and dissemination of DR Mycobacterium tuberculosis complex (MTBC) strains in the region. In the past, DR-TB patients faced insufficient resources, fragmented efforts, and suboptimal treatment outcomes. However, current efforts to combat DR-TB in the region are promising. These efforts include strengthening diagnostic capacities, improving access to quality healthcare services, and implementing evidence-based treatment regimens for DR-TB. Additionally, many West African National TB control programs are collaborating with international partners to scale up laboratory infrastructure, enhance surveillance systems, and promote infection control measures. Moreso, novel TB drugs and regimens, such as bedaquiline and delamanid, are being introduced to improve treatment outcomes for DR-TB cases. Despite these obstacles, there is optimism for the future of DR-TB control in West Africa. Investments are being made to improve healthcare systems, expand laboratory capacity, and support TB research and innovation. West African institutions are now supporting knowledge sharing, capacity building, and resource mobilization through collaborative initiatives such as the West African Network for TB, AIDS, and Malaria (WANETAM), the West African Health Organization (WAHO), and other regional or global partners. These efforts hold promise for improved diagnostics, optimized treatment regimens, and provide better patient outcomes in the future where drug-resistant TB in WA can be effectively controlled, reducing the burden of the disease, and improving the health outcomes of affected individuals.
- Published
- 2024
- Full Text
- View/download PDF
10. Effect of the COVID-19 pandemic on HIV, malaria and tuberculosis indicators in Togo: an interrupted time series analysis
- Author
-
Fifonsi Adjidossi Gbeasor-Komlanvi, Didier Koumavi Ekouevi, Kossivi Agbelenko Afanvi, Tinah Atcha-Oubou, Yao Rodion Konu, Fall Dogo, Claver Anoumou Dagnra, Fatoumata Binta Tidiane Diallo, Mahmoud Teouri, and Moustafa Mijiyawa
- Subjects
Medicine (General) ,R5-920 ,Infectious and parasitic diseases ,RC109-216 - Abstract
Background Limited data are available on the effects of the COVID-19 pandemic on health-related indicators in sub-Saharan Africa. This study aimed to estimate the effect of the COVID-19 pandemic on nine indicators of HIV, malaria and tuberculosis (TB) in Togo.Methods For this interrupted time series analysis, national health information system data from January 2019 to December 2021 and TB programmatic data from the first quarter of 2018 to the fourth quarter of 2022 were analysed. Nine indicators were included. We used Poisson segmented regression to estimate the immediate impact of the pandemic and per-pandemic period trends through incidence rate ratios (IRRs) with 95% CIs.Results Overall, there was a decrease in six of the nine indicators, ranging from 19.3% (IRR 0.807, 95% CI 0.682 to 0.955, p=0.024) for the hospitalisation of patients for malaria to 36.9% (IRR 0.631, 95% CI 0.457 to 0.871, p=0.013) for TB diagnosis by Mycobacterium tuberculosis Xpert immediately after the declaration of the COVID-19 pandemic. A comparison of the observed and predicted trends showed that the trend remained constant between the prepandemic and pandemic periods of COVID-19 for all malaria indicators. A significant downward monthly trend was observed in antiretroviral therapy initiation (IRR 0.909, 95% CI 0.892 to 0.926, p
- Published
- 2024
- Full Text
- View/download PDF
11. Direct-acting antiviral therapies for hepatitis C infection: global registration, reimbursement, and restrictions
- Author
-
Sargsyants, N., Suleymanova, L., Salkic, N., Simonova, M., Nemeth-Blazic, T., Mravcik, V., Kivimets, K., Salupere, R., Butsashvili, M., Soselia, G., Makara, M., Tolmane, I., Jancorienė, L., Stratulat, S., Flisiak, R., Gheorghe, L., Cernat, R., Lakhov, A., Stanevich, O., Jarcuska, P., Peck-Radosavljevic, M., Robaeys, G., Øvrehus, A., Foster, G., Sutinen, J., Farkkila, M., Rautiainen, H., Vuoti, S., Nikolova, D., Pawlotsky, J.M., Rockstroh, J., Sypsa, V., Papatheodoridis, G., Olafsson, S., Feeney, E., Teti, E., Seguin-Devaux, C., Pocock, J., Reiff, S., McDougall, N., Van der Valk, M., Dalgard, O., Tato Marinho, R., Dillon, J., Peters, E., Bojovic, K., Matičič, M., Kåberg, M., Bruggmann, P., Healy, B., Chong, V.H., Yi, S., Tucker, J., Pasaribu, L.R., Tanaka, J., Ashley, E.A., Abu Hassan, M.R., Mohammed, N.S., Chan, H.K., Gidaagaya, S., Kyi, K.P., Hyung Joon, K., Chin, B., Baladjay, P.C., Kao, J.H., Wansom, T., da Cruz, B., Flower, B., Ehsan, E., Al Mahtab, M., Khandu, L., Bhadoria, A.S., Alavi, M., KC, P., Hamid, S., Biryukov, S., Alymbaeva, D., Alaei, A., Bakieva, S., Flichman, D., Carmo, R.F., Valdez, E., Cortes, C.P., Contreras, F., Teran, E., Velez-Moller, P., Jagnarine, T., Mills, M., Goodman-Meza, D., Sánchez, J., Montenegro-Idrogo, J.J., Lugo Canales, A.M., Davy, J., Alexander, A., Gerona, S., Perazzo, R., Balak, D., Kelly-Hanku, A., Fineanganofo, A., Gane, E., Raymond, N., Debzi, N., Sridharan, K., Waked, I., Turner, D., Shibolet, O., Al Muzaini, A., El Nakib, M., Sheriff, D.S., Brahni, T., Essayagh, T., Essayagh, S., Hjaija, D., Al-Naamani, K., Sanai, F.M., Pasquale, H., Bedri, S., Chakroun, M., Ghrabi, A., Akarca, U.S., Falcao, V., Edmond Gbedo, S., Ouoba, S., Nyabenda, F., Rocher Mbella, M., Mahamat Moussa, A., Youssouf, T., Boniface, Y., Akilimali Shindano, T., Hamida, M.E., Mongo, A., Mapapa, C., Desalegn, H., Embinga, E.L.A., Ndow, G., Nartey, Y., Cisse, M., Djalo, M.A., Mugambi, M., Nyakowa, M., Jeuronlon, M.K., Ngoma, J., Manitrala Ramanampamonjy, R., Naik, K., Soyjaudah, M.D., Filipe, E., Nnakelu, E., Serumondo, J., Mbodj, M., Patino, M., Aalto, M.K., Waweru, P., Dagnra, A., Ocama, P., Maghimbi, A., Hamooya, B.M., Katsidzira, L., Rios, C., Thormann, M., Al Marzooqi, N., Al Rand, H.M., Francois, K., Hamoudi, W., Alkharty, M., Skripo, O., Uka, T., Marshall, Alison D, Willing, Alex R, Kairouz, Abe, Cunningham, Evan B, Wheeler, Alice, O’Brien, Nicholas, Perera, Vidura, Ward, John W, Hiebert, Lindsey, Degenhardt, Louisa, Hajarizadeh, Behzad, Colledge, Samantha, Hickman, Matthew, Jawad, Danielle, Lazarus, Jeffrey V, Matthews, Gail V, Scheibe, Andrew, Vickerman, Peter, Dore, Gregory J, and Grebely, Jason
- Published
- 2024
- Full Text
- View/download PDF
12. High SARS-CoV-2 seroprevalence among street adolescents in Lomé, Togo, 2021
- Author
-
Arnold Junior Sadio, Valentine Marie Ferré, Rodion Yao Konu, Anoumou Claver Dagnra, Diane Descamps, Didier Koumavi Ekouevi, and Charlotte Charpentier
- Subjects
SARS-CoV-2 seroprevalence ,Street adolescents ,Togo ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background There is almost no data on the circulation of SARS-CoV-2 among street adolescents. We conducted a study to document the immunization status of street adolescents in Togo against different variants of SARS-CoV-2. Methods A cross-sectional study was carried out in 2021 in Lomé, the city with the highest number of COVID 19 cases in Togo (60%). Adolescents aged 13- and 19 years old living on the street were eligible for inclusion. A standardized questionnaire was administered face-to-face to adolescents. A sample of blood was taken and aliquots of plasma were transported to the virology laboratory of the Hôpital Bichat-Claude Bernard (Paris, France). SARS-CoV-2 anti-S and anti-N IgG were measured using chemiluminescent microparticle immunoassay. A quantitative miniaturized and parallel-arranged ELISA assay was used to detect IgG antibodies specifically directed against the different SARS-CoV-2 Variants of Concern (VOC). Results A total of 299 street adolescents (5.2% female), median age 15 years, interquartile range (14-17 years), were included in this study. The prevalence of SARS-CoV-2 infection was 63.5% (95%CI: 57.8–69.0). Specific-IgG against the ancestral Wuhan strain was developed by 92.0% of subjects. The proportion of patients being immunized against each VOC was 86.8%, 51.1%, 56.3%, 60.0, and 30.5% for the Alpha, Beta, Gamma, Delta, and Omicron VOCs, respectively. Conclusion This study showed a very high prevalence with approximately 2/3 of Togolese street adolescents having antibodies to SARS-CoV-2 due to a previous infection. These results confirm an under-reporting of COVID-19 cases in Togo, questioning the hypothesis of low virus circulation in Togo and even in Africa.
- Published
- 2023
- Full Text
- View/download PDF
13. SARS-CoV-2 antibody seroprevalence in Togo: a national cross-sectional household survey, May–June, 2021
- Author
-
Yao Rodion Konu, Siaka Condé, Fifonsi Gbeasor-Komlanvi, Arnold Junior Sadio, Martin Kouame Tchankoni, Joel Anani, Alexandra Bitty-Anderson, Bisimwa Ruhana Mirindi, Fatoumata Binta Tidiane Diallo, Moustapha MIjiyawa, Anoumou Claver Dagnra, and Didier Koumavi Ekouevi
- Subjects
Seroprevalence ,SARS-CoV-2 ,General population ,Togo ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The extent of SARS-CoV-2 circulation in African countries is still unclear. Seroprevalence studies are a common approach to epidemiological surveillance, allowing estimation of the proportion of people who have had contact with the virus. We aimed at estimating the seroprevalence of anti-SARS-CoV-2 antibodies and associated factors in Togo at the national level in 2021 according to age groups, gender, and place of residence (rural or urban). Methods From 15 May to 31 June 2021, we conducted a nationally representative cross-sectional serological survey in 12 health districts (two districts per health region) in the > 5 years old population in Togo. The Wantai SARS-CoV-2 total antibody assay S protein receptor-binding domain-based ELISA (Wantai Biological Pharmacy Enterprise Co.; Beijing, China) was used to determine the presence of SARS-CoV-2 total antibodies in plasma. Crude and weighted seroprevalences (weighted by age, sex and place of residence) were calculated and then weighted seroprevalences were adjusted according to sensitivity and specificity of the ELISA test. Finally, logistic regression models were performed in order to describe factors associated. Results Of the 7593 participants, the overall weighted and adjusted seroprevalence of total anti-SARS-CoV-2 antibodies was 65.5% (CI95%: 18.9–21.1). Urban dwellers, young adults (30–49 years) and vaccinated individuals were significantly more likely to be seropositive. Conclusion The high seroprevalence we observed is consistent with observations across West Africa. Quantification of the level of immunity in the population is needed to know how close we are to herd immunity. In the meantime, vaccination against the COVID-19 remains necessary.
- Published
- 2022
- Full Text
- View/download PDF
14. Prevalence of Malaria and Covid-19 in Febrile Patients in Lomé, Togo in 2020
- Author
-
Dorkenoo, Ameyo Monique, Gbeasor-Komlanvi, Fifonsi Adjidossi, Gbada, Komivi, Zida-Compaore, Wendpouiré Ida Carine, Teou, Diwaba, Konu, Yao Rodion, Lack, Fiali, Sadio, Arnold Junior, Tchankoni, Martin Kouame, Dagnra, Anoumou Claver, and Ekouevi, Didier Koumavi
- Published
- 2022
- Full Text
- View/download PDF
15. HIV pre-exposure prophylaxis for men who have sex with men in west Africa: a multicountry demonstration study
- Author
-
Laurent, Christian, Yaya, Issifou, Ouedraogo, Sayouba, Granouillac, Bruno, Le Guicher, Gwenvael, Serrano, Laetitia, Peeters, Martine, Couderc, Clotilde, Spire, Bruno, Sagaon-Teyssier, Luis, Mora, Marion, Maradan, Gwenaëlle, Bourrelly, Michel, Mimi, Mohamed, Berenger, Cyril, Boyer, Sylvie, Rojas Castro, Daniela, Riegel, Lucas, Palvadeau, Paméla, Vuylsteke, Bea, De Baetselier, Irith, Reyniers, Thijs, Dembélé Keita, Bintou, Diallo, Fodié, Coulibaly, Alou, Maïga, Alassane Kader, Camara, Drissa, Diarra, Mahamadou, Ouologuem, Aly, Sangaré, Naboh, Keita, Abdoul Aziz, Cissé, Oumar, Traoré, Fodé, Ouary, Bréhima Abdrahamane, Kanta, Ibrahima, Anoma, Camille, Malan, Jean-Baptiste, Kotchi, Rachelle, Aka, Niamkey Thomas, Lokrou, Kpassou Julien, Coulibaly, Noufo Hamed, Koffi, Ekissi Jean Armel, N'guessan, Dibi Frédéric, Babo Yoro, Stéphane-Alain, Cissé, Adama, Dah, Ter Tiero Elias, Traoré, Issa, Rajaonarivelo, Camille, Ouedraogo, Fayçal Rodrique, Ouedraogo, Joseph, Coulibaly, Christian, Ouedraogo, Mamadou, Ilboudo, Ousseni, Traoré, Abdoulazziz, Comsiambo, Honoré, Mensah, Ephrem, Agboyibor, Mawuényégan Kouamivi, Attisso, Anani, Kokouba, Anouwarsadat, Badjassim, Aléda Mawuli, Agbomadji, Kouakou Kokouvi Selom, Attiogbe, Messan, Yaka, Kossi Jeff, Ekon, Agbégnigan Lorette, Bimba, Julien, Dagnra, Claver Anoumou, Tegueni, Kokou Dominique, Agboyibor, Mawuényégan K, Eubanks, August, Fayé-Ketté, Hortense, Koné, Amadou, Diandé, Souba, Dagnra, Claver A, and Dah, Ter Tiero E
- Published
- 2021
- Full Text
- View/download PDF
16. Global associations of key populations with HIV-1 recombinants: a systematic review, global survey, and individual participant data meta-analysis
- Author
-
Nkazi Nchinda, Ramyiadarsini Elangovan, Jason Yun, Leslie Dickson-Tetteh, Shona Kirtley, Joris Hemelaar, WHO-UNAIDS Network for HIV Isolation and Characterisation, Alash'le G. Abimiku, Simon Agwale, Chris Archibald, Boaz Avidor, Barbás María Gabriela, Francoise Barre-Sinoussi, Banson Barugahare, El Hadj Belabbes, Silvia Bertagnolio, Deborah Birx, Aleksei F. Bobkov, James Brandful, Helba Bredell, Catherine A. Brennan, James Brooks, Marie Bruckova, Luigi Buonaguro, Franco Buonaguro, Stefano Buttò, Anne Buve, Mary Campbell, Jean Carr, Alex Carrera, Manuel Gómez Carrillo, Connie Celum, Beth Chaplin, Macarthur Charles, Dimitrios Chatzidimitriou, Zhiwei Chen, Katsumi Chijiwa, David Cooper, Philip Cunningham, Anoumou Dagnra, Cillian F. de Gascun, Julia Del Amo, Elena Delgado, Ursula Dietrich, Dominic Dwyer, Dennis Ellenberger, Barbara Ensoli, Max Essex, Herve Fleury, Peter N. Fonjungo, Vincent Foulongne, Deepak A. Gadkari, Feng Gao, Federico García, Roger Garsia, Guy Michel Gershy-Damet, Judith R. Glynn, Ruth Goodall, Zehava Grossman, Monick Lindenmeyer Guimarães, Beatrice Hahn, Raph L. Hamers, Osamah Hamouda, Ray Handema, Xiang He, Joshua Herbeck, David D. Ho, Africa Holguin, Mina Hosseinipour, Gillian Hunt, Masahiko Ito, Mohamed Ali Bel Hadj Kacem, Erin Kahle, Pontiano Kaleebu, Marcia Kalish, Adeeba Kamarulzaman, Chun Kang, Phyllis Kanki, Edward Karamov, Jean-Claude Karasi, Kayitesi Kayitenkore, Tony Kelleher, Dwip Kitayaporn, Leondios G. Kostrikis, Claudia Kucherer, Claudia Lara, Thomas Leitner, Kirsi Liitsola, Jai Lingappa, Marek Linka, Ivette Lorenzana de Rivera, Vladimir Lukashov, Shlomo Maayan, Luzia Mayr, Francine McCutchan, Nicolas Meda, Elisabeth Menu, Fred Mhalu, Doreen Mloka, John L. Mokili, Brigitte Montes, Orna Mor, Mariza Morgado, Fausta Mosha, Awatef Moussi, James Mullins, Rafael Najera, Mejda Nasr, Nicaise Ndembi, Joel R. Neilson, Vivek R. Nerurkar, Florian Neuhann, Claudine Nolte, Vlad Novitsky, Philippe Nyambi, Marianna Ofner, Fem J. Paladin, Anna Papa, Jean Pape, Neil Parkin, Chris Parry, Martine Peeters, Alexandra Pelletier, Lucía Pérez-Álvarez, Deenan Pillay, Angie Pinto, Trinh Duy Quang, Cecilia Rademeyer, Filimone Raikanikoda, Mark A. Rayfield, Jean-Marc Reynes, Tobias Rinke de Wit, Kenneth E. Robbins, Morgane Rolland, Christine Rousseau, Jesus Salazar-Gonzales, Hanan Salem, Mika Salminen, Horacio Salomon, Paul Sandstrom, Mario L. Santiago, Abdoulaye D. Sarr, Bryan Schroeder, Michel Segondy, Philippe Selhorst, Sylvester Sempala, Jean Servais, Ansari Shaik, Yiming Shao, Amine Slim, Marcelo A. Soares, Elijah Songok, Debbie Stewart, Julie Stokes, Shambavi Subbarao, Ruengpung Sutthent, Jun Takehisa, Amilcar Tanuri, Kok Keng Tee, Kiran Thapa, Michael Thomson, Tyna Tran, Willy Urassa, Hiroshi Ushijima, Philippe van de Perre, Guido van der Groen, Kristel van Laethem, Joep van Oosterhout, Ard van Sighem, Eric van Wijngaerden, Anne-Mieke Vandamme, Jurgen Vercauteren, Nicole Vidal, Lesley Wallace, Carolyn Williamson, Dawit Wolday, Jianqing Xu, Chunfu Yang, Linqi Zhang, and Rong Zhang
- Subjects
HIV ,key populations ,recombinant ,CRF ,URF ,molecular epidemiology ,Public aspects of medicine ,RA1-1270 - Abstract
IntroductionGlobal HIV infections due to HIV-1 recombinants are increasing and impede prevention and treatment efforts. Key populations suffer most new HIV infections, but their role in the spread of HIV-1 recombinants is unknown. We conducted a global analysis of the associations between key populations and HIV-1 recombinants.MethodsWe searched PubMed, EMBASE, CINAHL, and Global Health for HIV-1 subtyping studies published from 1/1/1990 to 31/12/2015. Unpublished data was collected through a global survey. We included studies with HIV-1 subtyping data of key populations collected during 1990-2015. Key populations assessed were heterosexual people (HET), men who have sex with men (MSM), people who inject drugs (PWID), vertical transmissions (VERT), commercial sex workers (CSW), and transfusion-associated infections (BLOOD). Logistic regression was used to determine associations of key populations with HIV-1 recombinants. Subgroup analyses were performed for circulating recombinant forms (CRFs), unique recombinant forms (URFs), regions, and time periods.ResultsEight hundred and eighty five datasets including 77,284 participants from 83 countries were included. Globally, PWID were associated with the greatest odds of recombinants and CRFs (OR 2.6 [95% CI 2.46–2.74] and 2.99 [2.83–3.16]), compared to HET. CSW were associated with increased odds of recombinants and URFs (1.59 [1.44–1.75] and 3.61 [3.15–4.13]). VERT and BLOOD were associated with decreased odds of recombinants (0.58 [0.54–0.63] and 0.43 [0.33–0.56]). MSM were associated with increased odds of recombinants in 2010–2015 (1.43 [1.35–1.51]). Subgroup analyses supported our main findings.DiscussionAs PWID, CSW, and MSM are associated with HIV-1 recombinants, increased preventative measures and HIV-1 molecular surveillance are crucial within these key populations.Systematic review registrationPROSPERO [CRD42017067164].
- Published
- 2023
- Full Text
- View/download PDF
17. HIV prevalence and risk behaviors among female sex workers in Togo in 2017: a cross-sectional national study
- Author
-
Bitty-Anderson, Alexandra M., Gbeasor-Komlanvi, Fifonsi A., Tchankoni, Martin Kouame, Sadio, Arnold, Salou, Mounerou, Coffie, Patrick A., Dagnra, Claver A., and Ekouevi, Didier K.
- Published
- 2022
- Full Text
- View/download PDF
18. SARS-CoV-2 antibody seroprevalence in Togo: a national cross-sectional household survey, May–June, 2021
- Author
-
Konu, Yao Rodion, Condé, Siaka, Gbeasor-Komlanvi, Fifonsi, Sadio, Arnold Junior, Tchankoni, Martin Kouame, Anani, Joel, Bitty-Anderson, Alexandra, Mirindi, Bisimwa Ruhana, Diallo, Fatoumata Binta Tidiane, MIjiyawa, Moustapha, Dagnra, Anoumou Claver, and Ekouevi, Didier Koumavi
- Published
- 2022
- Full Text
- View/download PDF
19. HIV self-testing: A highly acceptable and feasible strategy for reconnecting street adolescents with HIV screening and prevention services in Togo (The STADOS study).
- Author
-
Sadio, Arnold Junior, Kouanfack, Harold Régis, Konu, Rodion Yao, Gbeasor-Komlanvi, Fifonsi Adjidossi, Azialey, Gagnon Kwami, Gounon, Herbert Kokou, Tchankoni, Martin Kouame, Amenyah-Ehlan, Amivi Phyllis, Dagnra, Anoumou Claver, and Ekouevi, Didier Koumavi
- Subjects
HIV testing kits ,PATIENT self-monitoring ,HIV infections ,SEXUAL intercourse ,HIV prevention - Abstract
Introduction: HIV self-testing is a complementary screening strategy that could facilitate access to HIV care services for street adolescents. The objectives of this study were to assess the acceptability and feasibility of HIV self-testing and their associated factors, to estimate HIV prevalence among street adolescents in Togo, and to describe the sexual behavior of this population. Methods: A cross-sectional study was conducted between July 2021 and May 2022 in Lomé and Kara (Togolese cities with the highest number of street adolescents). Street adolescents aged 13–19 years were included. An oral HIV self-test (OraQuick®) was used. Acceptability was defined as the proportion of adolescents who completed the test, and feasibility was defined as the proportion of adolescents who reported a test with a valid result. An HIV serological test was performed for all participants. A weighted logistic regression model was used to identify the factors associated with the acceptability and feasibility of HIV self-testing. Results: A total of 432 street adolescents (12.3% female) with a median age of 15 years, interquartile range (IQR) [14–17], were included in this study. Of the 231 sexually active adolescents, only 30.3% (n = 70) reported having used a condom during their last sexual intercourse. HIV self-test was offered to a sub-sample of 294 street adolescents. Acceptability was 96.6% (284/294), (95%CI = [93.8–98.3]) and feasibility 98.9% (281/284), (95%CI = [97.0–100.0]). Being 16 years of age or older (aOR = 28.84; p<0.001) was associated with HIV self-test acceptability. Reporting drug abuse (aOR = 0.47; p = 0.020) was negatively associated to acceptability. Having an educational level at least equivalent to secondary school was associated to HIV self-testing feasibility (aOR = 3.92; p = 0.040). Self-test results were correctly interpreted by 98.6% of street adolescents. HIV prevalence was estimated at 0.9% (95%CI [0.4–2.4]). Conclusion: HIV self-testing is acceptable and feasible among street adolescents, a population at high risk of HIV infection in Togo. The provision of HIV self-testing kits, coupled with condom distribution, represents an opportunity to improve access to HIV care services. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
20. Viral whole genome sequencing reveals high variations in APOBEC3 editing between HPV risk categories.
- Author
-
Ferré, Valentine Marie, Coppée, Romain, Gbeasor‐Komlanvi, Fifonsi A., Vacher, Sophie, Bridier‐Nahmias, Antoine, Bucau, Margot, Salou, Mounerou, Lameiras, Sonia, Couvelard, Anne, Dagnra, Anoumou Claver, Bieche, Ivan, Descamps, Diane, Ekouevi, Didier K., Ghosn, Jade, and Charpentier, Charlotte
- Subjects
HUMAN genetic variation ,WHOLE genome sequencing ,HUMAN papillomavirus ,GENETIC variation ,VIRAL genomes - Abstract
High‐risk human papillomavirus (HPV) infections are responsible for cervical cancer. However, little is known about the differences between HPV types and risk categories regarding their genetic diversity and particularly APOBEC3‐induced mutations – which contribute to the innate immune response to HPV. Using a capture‐based next‐generation sequencing, 156 HPV whole genome sequences covering 43 HPV types were generated from paired cervical and anal swabs of 30 Togolese female sex workers (FSWs) sampled in 2017. Genetic diversity and APOBEC3‐induced mutations were assessed at the viral whole genome and gene levels. Thirty‐four pairwise sequence comparisons covering 24 HPV types in cervical and anal swabs revealed identical infections in the two anatomical sites. Differences in genetic diversity among HPV types was observed between patients. The E6 gene was significantly less conserved in low‐risk HPVs (lrHPVs) compared to high‐risk HPVs (hrHPVs) (p = 0.009). APOBEC3‐induced mutations were found to be more common in lrHPVs than in hrHPVs (p = 0.005), supported by our data and by using large HPV sequence collections from the GenBank database. Focusing on the most common lrHPVs 6 and 11 and hrHPVs 16 and 18, APOBEC3‐induced mutations were predominantly found in the E4 and E6 genes in lrHPVs, but were almost absent in these genes in hrHPVs. The variable APOBEC3 mutational signatures could contribute to the different oncogenic potentials between HPVs. Further studies are needed to conclusively determine whether APOBEC3 editing levels are associated to the carcinogenic potential of HPVs at the type and sublineage scales. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Pharmaco-virological outcomes and genotypic resistance profiles among children and adolescents receiving a DTG-based regimen in Togo
- Author
-
Konu, Yao Rodion, primary, Takassi, Elom, additional, Peytavin, Gilles, additional, Dapam, Nina, additional, Damond, Florence, additional, Oumarou, Wone Adama, additional, Zaidi, Meryem, additional, Franco-Yusti, Anna-Maria, additional, Dagnra, Claver A, additional, Le Hingrat, Quentin, additional, Coppée, Romain, additional, Descamps, Diane, additional, Diallo, Fatoumata Binta Tidiane, additional, Ekouevi, Didier K, additional, and Charpentier, Charlotte, additional
- Published
- 2024
- Full Text
- View/download PDF
22. Effect of the COVID-19 pandemic on HIV, malaria and tuberculosis indicators in Togo: an interrupted time series analysis
- Author
-
Konu, Yao Rodion, primary, Dogo, Fall, additional, Dagnra, Claver Anoumou, additional, Atcha-Oubou, Tinah, additional, Gbeasor-Komlanvi, Fifonsi Adjidossi, additional, Afanvi, Kossivi Agbelenko, additional, Diallo, Fatoumata Binta Tidiane, additional, Teouri, Mahmoud, additional, Mijiyawa, Moustafa, additional, and Ekouevi, Didier Koumavi, additional
- Published
- 2024
- Full Text
- View/download PDF
23. Prevalence and factors associated with trichomonas vaginalis infection among female sex workers in Togo, 2017
- Author
-
Martin Kouame TCHANKONI, Alexandra Marie Bitty-Anderson, Arnold Junior SADIO, Fifonsi Adjidossi GBEASOR-KOMLANVI, Valentine Marie FERRÉ, Wendpouiré Ida Carine ZIDA-COMPAORE, Ameyo Monique DORKENOO, Bayaki SAKA, Anoumou Claver DAGNRA, Charlotte CHARPENTIER, and Didier Koumavi EKOUEVI
- Subjects
Trichomonas vaginalis ,Female sex workers ,HIV ,West Africa ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background The aim of this study was to estimate the prevalence and factors associated with Trichomonas vaginalis (T. vaginalis) among female sex workers (FSW) in Togo in 2017. A cross-sectional bio-behavioral study was conducted from August to October 2017 using a respondent-driven sampling method in four cities in Togo. Method A standardized questionnaire was used to record socio-demographic data and sexual behavior patterns. T. vaginalis detection by molecular biology tests was performed using Allplex STI Essential Assay which detect also 6 others micro-organisms. A blood sample was drawn and serological test using SD Bioline Duo VIH/Syphilis rapid test was performed for Human immunodeficiency virus (HIV) and syphilis testing. Results A total of 310 FSW with median age 25 years, interquartile range (IQR) [21–32 years] were included. The prevalence of T. vaginalis was 6.5% (95%CI = [4.1–9.9]) and, overall, prevalence of other STI ranged from 4.2% (95%CI = [2.3–7.2]) for N. gonorrhoeae to 10.6% (95% CI = [7.5–14.7]) for HIV. Binary logistic regression was conducted to assess factors associated with T. vaginalis infection. Living in Lomé (aOR = 3.19; 95%CI = [1.11–11.49]), having had sexual intercourse before the age of 18 (aOR = 5.72; 95%CI = [1.13–10.89]), and being infected with C. trachomatis (aOR = 3.74; 95%CI = [2.95–12.25]) were factors associated with T. vaginalis among FSW. Conclusion The prevalence of T. vaginalis infection using molecular test was low among FSW in Togo. Extensive studies are needed to confirm and to better understand the epidemiology of T. vaginalis among this population and in other populations in Togo.
- Published
- 2021
- Full Text
- View/download PDF
24. High burden of self-reported sexually transmitted infections among female sex workers in Togo in 2021
- Author
-
Alexandra M. Bitty-Anderson, Fifonsi A. Gbeasor-Komlanvi, Akila W. Bakoubayi, Martin K. Tchankoni, Arnold J. Sadio, Mounerou Salou, Claver A. Dagnra, Didier K. Ekouevi, and Patrick A. Coffie
- Subjects
sexually transmitted infections (STI) ,female sex workers (FSW) ,key populations ,sub-Saharan Africa ,STI symptoms ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundSexually Transmitted Infections (STI) remain a public health challenge, especially for Female Sex Workers (FSW) who are particularly vulnerable. In sub-Saharan Africa where the overlapping epidemics of STI and HIV are concentrated among key populations, epidemiological data are needed in order to better understand STI trends in this population. The aim of this study was to assess the prevalence of self-reported STI symptoms and their risk factors among FSW in Togo in 2021.MethodsA cross-sectional study was completed in June and July 2021 among FSW in two cities of Togo: in Lomé (capital city, south of Togo) and in Kara (north of Togo). A snowball sampling method was used and after consent, a standardized questionnaire was administered by trained research staff to collect information on STI. A multivariate logistic regression model was used to identify factors associated with self-reported STI.ResultsA total of 447 FSW, 300 in Lomé and 147 in Kara participated in this study. Median age was 30 [IQR: 24–38] and STI symptoms in the previous 12 months were reported by 191 FSW [42.7%, 95% CI: (38.1–47.5)], among whom 116 (60.7%) sought medical care. The most common reported symptoms were abnormal vaginal discharge (n = 78; 67.2%) and vaginal itching (n = 68; 58.6%). Current STI symptoms (at the time of the survey) were reported by 88 FSW (19.7%). In multivariable logistic regression, self-reported STI symptoms in the previous 12 months was negatively associated with living in the Lomé and older age and positively associated with having more than 15 clients in the previous week and being victim of violence.ConclusionsFindings from this study reveal that the self-reported STI burden is relatively high among FSW Togo. Additional strategies are needed at the structural, medical, political and social levels to curb this trend and effectively aim at the elimination of STI epidemics by the year 2030.
- Published
- 2022
- Full Text
- View/download PDF
25. Assessment of the acceptability and feasibility of HIV self-testing in vulnerable population groups in Togo.
- Author
-
Akakpo, Abla Sefako, Teclessou, Julienne Noude, Deku, Kodzo, Tchupo, Jean Paul, Wade, Souley, Ekouevi, Didier Koumavi, Dagnra, Anoumou Yaotsè, and Pitche, Palokinam
- Subjects
HIV testing kits ,PATIENT self-monitoring ,BULLOUS pemphigoid ,MEN who have sex with men ,TRANSGENDER people - Abstract
Background: The aim of this study was to assess the acceptability and feasibility of HIV self-testing in vulnerable population groups. Methods: This was a quantitative and qualitative study conducted in April 2022 in thirteen pilot centers of the national AIDS program. The target populations were men who had sex with men (MSM), female sex workers (FSWs), and street adolescents. Results: During the study period, 802 people were included in this study, among whom 51.4% were male. The study population consisted mainly of FSWs (34.4%), MSM (24.4%), and people from the general population (23.2%). The median age of the participants was 23 years, ranging from 13 to 77 years. The overall acceptability of the self-test was estimated to be 97.1% (n = 779). Six participants refused to do it immediately yet suggested that they might do it later, and 17 (2.1%) outright refused to do it. Acceptability was 100% among street adolescents, transgender people, and drug users. The lowest level of acceptability (93.5%) was found among the FSWs. Self-testing was considered feasible for 99.7% (n = 777) IC95% (99.1-100.0) of the participants. Conclusion: Our study showed that self-testing is a highly acceptable and practical strategy for MSM, FSWs, and adolescents in Togo. Therefore, in order to accelerate the implementation of population screening programs in our country, it is important to bring all innovative interventions to scale if we are to achieve the UNAIDS 95-95-95 targets by 2026. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. Opinion review of drug resistant tuberculosis in West Africa: tackling the challenges for effective control.
- Author
-
Otchere, Isaac Darko, Asante-Poku, Adwoa, Akpadja, Kodjo Francis, Diallo, Awa Ba, Sanou, Adama, Asare, Prince, Osei-Wusu, Stephen, Onyejepu, Nneka, Diarra, Bassirou, Dagnra, Yaotsè Anoumou, Kehinde, Aderemi, Antonio, Martin, and Yeboah-Manu, Dorothy
- Published
- 2024
- Full Text
- View/download PDF
27. Frequent chlamydia and gonorrhoea but very infrequent syphilis among men who have sex with men using HIV pre-exposure prophylaxis in West Africa.
- Author
-
Elias Dah, Ter Tiero, De Baetselier, Irith, Cuer, Benjamin, Anoma, Camille, Mensah, Ephrem, Koné, Amadou, Diandé, Souba, Dagnra, Claver Anoumou, Faye-Kette, Hortense Yaobla, Yeo, Alain, Yaya, Issifou, Spire, Bruno, Dembélé Keita, Bintou, Crucitti, Tania, Vuylsteke, Bea, and Laurent, Christian
- Published
- 2024
- Full Text
- View/download PDF
28. Global and regional epidemiology of HIV-1 recombinants in 1990–2015: a systematic review and global survey
- Author
-
Abimiku, Alash'le G, Agwale, Simon, Archibald, Chris, Avidor, Boaz, Barbás, María Gabriela, Barre-Sinoussi, Francoise, Barugahare, Banson, Belabbes, El Hadj, Bertagnolio, Silvia, Birx, Deborah, Bobkov, Aleksei F, Brandful, James, Bredell, Helba, Brennan, Catherine A, Brooks, James, Bruckova, Marie, Buonaguro, Luigi, Buonaguro, Franco, Buttò, Stefano, Buvé, Anne, Campbell, Mary, Carr, Jean, Carrera, Alex, Carrillo, Manuel Gómez, Celum, Connie, Chaplin, Beth, Charles, Macarthur, Chatzidimitriou, Dimitrios, Chen, Zhiwei, Chijiwa, Katsumi, Cooper, David, Cunningham, Philip, Dagnra, Anoumou, de Gascun, Cillian F, Del Amo, Julia, Delgado, Elena, Dietrich, Ursula, Dwyer, Dominic, Ellenberger, Dennis, Ensoli, Barbara, Essex, Max, Gao, Feng, Fleury, Hervé, Fonjungo, Peter N, Foulongne, Vincent, Gadkari, Deepak A, García, Federico, Garsia, Roger, Gershy-Damet, Guy Michel, Glynn, Judith R, Goodall, Ruth, Grossman, Zehava, Lindenmeyer-Guimarães, Monick, Hahn, Beatrice, Hamers, Raph L, Hamouda, Osamah, Handema, Ray, He, Xiang, Herbeck, Joshua, Ho, David D, Holguin, Africa, Hosseinipour, Mina, Hunt, Gillian, Ito, Masahiko, Bel Hadj Kacem, Mohamed Ali, Kahle, Erin, Kaleebu, Pontiano, Kalish, Marcia, Kamarulzaman, Adeeba, Kang, Chun, Kanki, Phyllis, Karamov, Edward, Karasi, Jean-Claude, Kayitenkore, Kayitesi, Kelleher, Tony, Kitayaporn, Dwip, Kostrikis, Leondios G, Kucherer, Claudia, Lara, Claudia, Leitner, Thomas, Liitsola, Kirsi, Lingappa, Jai, Linka, Marek, Lorenzana de Rivera, Ivette, Lukashov, Vladimir, Maayan, Shlomo, Mayr, Luzia, McCutchan, Francine, Meda, Nicolas, Menu, Elisabeth, Mhalu, Fred, Mloka, Doreen, Mokili, John L, Montes, Brigitte, Mor, Orna, Morgado, Mariza, Mosha, Fausta, Moussi, Awatef, Mullins, James, Najera, Rafael, Nasr, Mejda, Ndembi, Nicaise, Neilson, Joel R, Nerurkar, Vivek R, Neuhann, Florian, Nolte, Claudine, Novitsky, Vlad, Nyambi, Philippe, Ofner, Marianna, Paladin, Fem J, Papa, Anna, Pape, Jean, Parkin, Neil, Parry, Chris, Peeters, Martine, Pelletier, Alexandra, Pérez-Álvarez, Lucía, Pillay, Deenan, Pinto, Angie, Quang, Trinh Duy, Rademeyer, Cecilia, Raikanikoda, Filimone, Rayfield, Mark A, Reynes, Jean-Marc, Rinke de Wit, Tobias, Robbins, Kenneth E, Rolland, Morgane, Rousseau, Christine, Salazar-Gonzales, Jesus, Salem, Hanan, Salminen, Mika, Salomon, Horacio, Sandstrom, Paul, Santiago, Mario L, Sarr, Abdoulaye D, Schroeder, Bryan, Segondy, Michel, Selhorst, Philippe, Sempala, Sylvester, Servais, Jean, Shaik, Ansari, Shao, Yiming, Slim, Amine, Soares, Marcelo A, Songok, Elijah, Stewart, Debbie, Stokes, Julie, Subbarao, Shambavi, Sutthent, Ruengpung, Takehisa, Jun, Tanuri, Amilcar, Tee, Kok Keng, Thapa, Kiran, Thomson, Michael, Tran, Tyna, Urassa, Willy, Ushijima, Hiroshi, van de Perre, Philippe, van der Groen, Guido, van Laethem, Kristel, van Oosterhout, Joep, van Sighem, Ard, van Wijngaerden, Eric, Vandamme, Anne-Mieke, Vercauteren, Jurgen, Vidal, Nicole, Wallace, Lesley, Williamson, Carolyn, Wolday, Dawit, Xu, Jianqing, Yang, Chunfu, Zhang, Linqi, Zhang, Rong, Hemelaar, Joris, Elangovan, Ramyiadarsini, Yun, Jason, Dickson-Tetteh, Leslie, Kirtley, Shona, Gouws-Williams, Eleanor, and Ghys, Peter D
- Published
- 2020
- Full Text
- View/download PDF
29. Direct-acting antiviral therapies for hepatitis C infection: global registration, reimbursement, and restrictions
- Author
-
Marshall, Alison D, primary, Willing, Alex R, additional, Kairouz, Abe, additional, Cunningham, Evan B, additional, Wheeler, Alice, additional, O’Brien, Nicholas, additional, Perera, Vidura, additional, Ward, John W, additional, Hiebert, Lindsey, additional, Degenhardt, Louisa, additional, Hajarizadeh, Behzad, additional, Colledge, Samantha, additional, Hickman, Matthew, additional, Jawad, Danielle, additional, Lazarus, Jeffrey V, additional, Matthews, Gail V, additional, Scheibe, Andrew, additional, Vickerman, Peter, additional, Dore, Gregory J, additional, Grebely, Jason, additional, Sargsyants, N., additional, Suleymanova, L., additional, Salkic, N., additional, Simonova, M., additional, Nemeth-Blazic, T., additional, Mravcik, V., additional, Kivimets, K., additional, Salupere, R., additional, Butsashvili, M., additional, Soselia, G., additional, Makara, M., additional, Tolmane, I., additional, Jancorienė, L., additional, Stratulat, S., additional, Flisiak, R., additional, Gheorghe, L., additional, Cernat, R., additional, Lakhov, A., additional, Stanevich, O., additional, Jarcuska, P., additional, Peck-Radosavljevic, M., additional, Robaeys, G., additional, Øvrehus, A., additional, Foster, G., additional, Sutinen, J., additional, Farkkila, M., additional, Rautiainen, H., additional, Vuoti, S., additional, Nikolova, D., additional, Pawlotsky, J.M., additional, Rockstroh, J., additional, Sypsa, V., additional, Papatheodoridis, G., additional, Olafsson, S., additional, Feeney, E., additional, Teti, E., additional, Seguin-Devaux, C., additional, Pocock, J., additional, Reiff, S., additional, McDougall, N., additional, Van der Valk, M., additional, Dalgard, O., additional, Tato Marinho, R., additional, Dillon, J., additional, Peters, E., additional, Bojovic, K., additional, Matičič, M., additional, Kåberg, M., additional, Bruggmann, P., additional, Healy, B., additional, Chong, V.H., additional, Yi, S., additional, Tucker, J., additional, Pasaribu, L.R., additional, Tanaka, J., additional, Ashley, E.A., additional, Abu Hassan, M.R., additional, Mohammed, N.S., additional, Chan, H.K., additional, Gidaagaya, S., additional, Kyi, K.P., additional, Hyung Joon, K., additional, Chin, B., additional, Baladjay, P.C., additional, Kao, J.H., additional, Wansom, T., additional, da Cruz, B., additional, Flower, B., additional, Ehsan, E., additional, Al Mahtab, M., additional, Khandu, L., additional, Bhadoria, A.S., additional, Alavi, M., additional, KC, P., additional, Hamid, S., additional, Biryukov, S., additional, Alymbaeva, D., additional, Alaei, A., additional, Bakieva, S., additional, Flichman, D., additional, Carmo, R.F., additional, Valdez, E., additional, Cortes, C.P., additional, Contreras, F., additional, Teran, E., additional, Velez-Moller, P., additional, Jagnarine, T., additional, Mills, M., additional, Goodman-Meza, D., additional, Sánchez, J., additional, Montenegro-Idrogo, J.J., additional, Lugo Canales, A.M., additional, Davy, J., additional, Alexander, A., additional, Gerona, S., additional, Perazzo, R., additional, Balak, D., additional, Kelly-Hanku, A., additional, Fineanganofo, A., additional, Gane, E., additional, Raymond, N., additional, Debzi, N., additional, Sridharan, K., additional, Waked, I., additional, Turner, D., additional, Shibolet, O., additional, Al Muzaini, A., additional, El Nakib, M., additional, Sheriff, D.S., additional, Brahni, T., additional, Essayagh, T., additional, Essayagh, S., additional, Hjaija, D., additional, Al-Naamani, K., additional, Sanai, F.M., additional, Pasquale, H., additional, Bedri, S., additional, Chakroun, M., additional, Ghrabi, A., additional, Akarca, U.S., additional, Falcao, V., additional, Edmond Gbedo, S., additional, Ouoba, S., additional, Nyabenda, F., additional, Rocher Mbella, M., additional, Mahamat Moussa, A., additional, Youssouf, T., additional, Boniface, Y., additional, Akilimali Shindano, T., additional, Hamida, M.E., additional, Mongo, A., additional, Mapapa, C., additional, Desalegn, H., additional, Embinga, E.L.A., additional, Ndow, G., additional, Nartey, Y., additional, Cisse, M., additional, Djalo, M.A., additional, Mugambi, M., additional, Nyakowa, M., additional, Jeuronlon, M.K., additional, Ngoma, J., additional, Manitrala Ramanampamonjy, R., additional, Naik, K., additional, Soyjaudah, M.D., additional, Filipe, E., additional, Nnakelu, E., additional, Serumondo, J., additional, Mbodj, M., additional, Patino, M., additional, Aalto, M.K., additional, Waweru, P., additional, Dagnra, A., additional, Ocama, P., additional, Maghimbi, A., additional, Hamooya, B.M., additional, Katsidzira, L., additional, Rios, C., additional, Thormann, M., additional, Al Marzooqi, N., additional, Al Rand, H.M., additional, Francois, K., additional, Hamoudi, W., additional, Alkharty, M., additional, Skripo, O., additional, and Uka, T., additional
- Published
- 2024
- Full Text
- View/download PDF
30. Targeted solutions to increase dolutegravir coverage, viral load testing coverage, and viral suppression among children living with HIV in Togo: An analysis of routine facility data
- Author
-
Casalini, Caterina, primary, D’Almeida, Yema, additional, Nassam, Moussa Ariziki, additional, Kokoloko, Essopha, additional, Wade, Souley, additional, Tchupo, Jean Paul, additional, Damarly, Messan, additional, Mandala, Justin, additional, Lanham, Michele, additional, Mack, Natasha, additional, Akolo, Chris, additional, Pitche, Vincent Polakinam, additional, Guidigbi, Hugues, additional, and Dagnra, Claver Anoumou, additional
- Published
- 2023
- Full Text
- View/download PDF
31. Correction: SARS-CoV-2 antibody seroprevalence in Togo: a national cross-sectional household survey, May–June, 2021
- Author
-
Yao Rodion Konu, Siaka Condé, Fifonsi Gbeasor-Komlanvi, Arnold Junior Sadio, Martin Kouame Tchankoni, Joel Anani, Alexandra Bitty-Anderson, Bisimwa Ruhana Mirindi, Fatoumata Binta Tidiane Diallo, Moustapha MIjiyawa, Anoumou Claver Dagnra, and Didier Koumavi Ekouevi
- Subjects
Public aspects of medicine ,RA1-1270 - Published
- 2023
- Full Text
- View/download PDF
32. Prevalence and factors associated with trichomonas vaginalis infection among female sex workers in Togo, 2017
- Author
-
TCHANKONI, Martin Kouame, Bitty-Anderson, Alexandra Marie, SADIO, Arnold Junior, GBEASOR-KOMLANVI, Fifonsi Adjidossi, FERRÉ, Valentine Marie, ZIDA-COMPAORE, Wendpouiré Ida Carine, DORKENOO, Ameyo Monique, SAKA, Bayaki, DAGNRA, Anoumou Claver, CHARPENTIER, Charlotte, and EKOUEVI, Didier Koumavi
- Published
- 2021
- Full Text
- View/download PDF
33. Global and regional molecular epidemiology of HIV-1, 1990–2015: a systematic review, global survey, and trend analysis
- Author
-
Abimiku, Alash'le G, Agwale, Simon, Archibald, Chris, Avidor, Boaz, Barbás, María Gabriela, Barre-Sinoussi, Francoise, Barugahare, Banson, Belabbes, El Hadj, Bertagnolio, Silvia, Birx, Deborah, Bobkov, Aleksei F, Brandful, James, Bredell, Helba, Brennan, Catherine A, Brooks, James, Bruckova, Marie, Buonaguro, Luigi, Buonaguro, Franco, Buttò, Stefano, Buve, Anne, Campbell, Mary, Carr, Jean, Carrera, Alex, Carrillo, Manuel Gómez, Celum, Connie, Chaplin, Beth, Charles, Macarthur, Chatzidimitriou, Dimitrios, Chen, Zhiwei, Chijiwa, Katsumi, Cooper, David, Cunningham, Philip, Dagnra, Anoumou, de Gascun, Cillian F, Del Amo, Julia, Delgado, Elena, Dietrich, Ursula, Dwyer, Dominic, Ellenberger, Dennis, Ensoli, Barbara, Essex, Max, Gao, Feng, Fleury, Herve, Fonjungo, Peter N, Foulongne, Vincent, Gadkari, Deepak A, García, Federico, Garsia, Roger, Gershy-Damet, Guy Michel, Glynn, Judith R, Goodall, Ruth, Grossman, Zehava, Lindenmeyer-Guimarães, Monick, Hahn, Beatrice, Hamers, Raph L, Hamouda, Osamah, Handema, Ray, He, Xiang, Herbeck, Joshua, Ho, David D, Holguin, Africa, Hosseinipour, Mina, Hunt, Gillian, Ito, Masahiko, Bel Hadj Kacem, Mohamed Ali, Kahle, Erin, Kaleebu, Pontiano Kaleebu, Kalish, Marcia, Kamarulzaman, Adeeba, Kang, Chun, Kanki, Phyllis, Karamov, Edward, Karasi, Jean-Claude, Kayitenkore, Kayitesi, Kelleher, Tony, Kitayaporn, Dwip, Kostrikis, Leondios G, Kucherer, Claudia, Lara, Claudia, Leitner, Thomas, Liitsola, Kirsi, Lingappa, Jai, Linka, Marek, Lorenzana de Rivera, Ivette, Lukashov, Vladimir, Maayan, Shlomo, Mayr, Luzia, McCutchan, Francine, Meda, Nicolas, Menu, Elisabeth, Mhalu, Fred, Mloka, Doreen, Mokili, John L, Montes, Brigitte, Mor, Orna, Morgado, Mariza, Mosha, Fausta, Moussi, Awatef, Mullins, James, Najera, Rafael, Nasr, Mejda, Ndembi, Nicaise, Neilson, Joel R, Nerurkar, Vivek R, Neuhann, Florian, Nolte, Claudine, Novitsky, Vlad, Nyambi, Philippe, Ofner, Marianna, Paladin, Fem J, Papa, Anna, Pape, Jean, Parkin, Neil, Parry, Chris, Peeters, Martine, Pelletier, Alexandra, Pérez-Álvarez, Lucía, Pillay, Deenan, Pinto, Angie, Quang, Trinh Duy, Rademeyer, Cecilia, Raikanikoda, Filimone, Rayfield, Mark A, Reynes, Jean-Marc, Rinke de Wit, Tobias, Robbins, Kenneth E, Rolland, Morgane, Rousseau, Christine, Salazar-Gonzales, Jesus, Salem, Hanan, Salminen, Mika, Salomon, Horacio, Sandstrom, Paul, Santiago, Mario L, Sarr, Abdoulaye D, Schroeder, Bryan, Segondy, Michel, Selhorst, Philippe, Sempala, Sylvester, Servais, Jean, Shaik, Ansari, Shao, Yiming, Slim, Amine, Soares, Marcelo A, Songok, Elijah, Stewart, Debbie, Stokes, Julie, Subbarao, Shambavi, Sutthent, Ruengpung, Takehisa, Jun, Tanuri, Amilcar, Tee, Kok Keng, Thapa, Kiran, Thomson, Michael, Tran, Tyna, Urassa, Willy, Ushijima, Hiroshi, van de Perre, Philippe, van der Groen, Guido, van Laethem, Kristel, van Oosterhout, Joep, van Sighem, Ard, van Wijngaerden, Eric, Vandamme, Anne-Mieke, Vercauteren, Jurgen, Vidal, Nicole, Wallace, Lesley, Williamson, Carolyn, Wolday, Dawit, Xu, Jianqing, Yang, Chunfu, Zhang, Linqi, Zhang, Rong, Hemelaar, Joris, Elangovan, Ramyiadarsini, Yun, Jason, Dickson-Tetteh, Leslie, Fleminger, Isabella, Kirtley, Shona, Williams, Brian, Gouws-Williams, Eleanor, and Ghys, Peter D
- Published
- 2019
- Full Text
- View/download PDF
34. Global and Regional Estimates for Subtype-Specific Therapeutic and Prophylactic HIV-1 Vaccines: A Modeling Study
- Author
-
Ramyiadarsini Elangovan, Michael Jenks, Jason Yun, Leslie Dickson-Tetteh, Shona Kirtley, Joris Hemelaar, WHO-UNAIDS Network for HIV Isolation and Characterisation, Alash’le G Abimiku, Simon Agwale, Chris Archibald, Boaz Avidor, María Gabriela Barbás, Francoise Barre-Sinoussi, Banson Barugahare, El Hadj Belabbes, Silvia Bertagnolio, Deborah Birx, Aleksei F Bobkov, James Brandful, Helba Bredell, Catherine A Brennan, James Brooks, Marie Bruckova, Luigi Buonaguro, Franco Buonaguro, Stefano Buttò, Anne Buvé, Mary Campbell, Jean Carr, Alex Carrera, Manuel Gómez Carrillo, Connie Celum, Beth Chaplin, Macarthur Charles, Dimitrios Chatzidimitriou, Zhiwei Chen, Katsumi Chijiwa, David Cooper, Philip Cunningham, Anoumou Dagnra, Cillian F de Gascun, Julia Del Amo, Elena Delgado, Ursula Dietrich, Dominic Dwyer, Dennis Ellenberger, Barbara Ensoli, Max Essex, Hervé Fleury, Peter N Fonjungo, Vincent Foulongne, Deepak A Gadkari, Feng Gao, Federico García, Roger Garsia, Guy Michel Gershy-Damet, Judith R Glynn, Ruth Goodall, Zehava Grossman, Monick Lindenmeyer Guimarães, Beatrice Hahn, Raph L Hamers, Osamah Hamouda, Ray Handema, Xiang He, Joshua Herbeck, David D Ho, Africa Holguin, Mina Hosseinipour, Gillian Hunt, Masahiko Ito, Mohamed Ali Bel Hadj Kacem, Erin Kahle, Pontiano Kaleebu, Marcia Kalish, Adeeba Kamarulzaman, Chun Kang, Phyllis Kanki, Edward Karamov, Jean-Claude Karasi, Kayitesi Kayitenkore, Tony Kelleher, Dwip Kitayaporn, Leondios G Kostrikis, Claudia Kucherer, Claudia Lara, Thomas Leitner, Kirsi Liitsola, Jai Lingappa, Marek Linka, Ivette Lorenzana de Rivera, Vladimir Lukashov, Shlomo Maayan, Luzia Mayr, Francine McCutchan, Nicolas Meda, Elisabeth Menu, Fred Mhalu, Doreen Mloka, John L Mokili, Brigitte Montes, Orna Mor, Mariza Morgado, Fausta Mosha, Awatef Moussi, James Mullins, Rafael Najera, Mejda Nasr, Nicaise Ndembi, Joel R Neilson, Vivek R Nerurkar, Florian Neuhann, Claudine Nolte, Vlad Novitsky, Philippe Nyambi, Marianna Ofner, Fem J Paladin, Anna Papa, Jean Pape, Neil Parkin, Chris Parry, Martine Peeters, Alexandra Pelletier, Lucía Pérez-Álvarez, Deenan Pillay, Angie Pinto, Trinh Duy Quang, Cecilia Rademeyer, Filimone Raikanikoda, Mark A. Rayfield, Jean-Marc Reynes, Tobias Rinke de Wit, Kenneth E Robbins, Morgane Rolland, Christine Rousseau, Jesus Salazar-Gonzales, Hanan Salem, Mika Salminen, Horacio Salomon, Paul Sandstrom, Mario L Santiago, Abdoulaye D Sarr, Bryan Schroeder, Michel Segondy, Philippe Selhorst, Sylvester Sempala, Jean Servais, Ansari Shaik, Yiming Shao, Amine Slim, Marcelo A Soares, Elijah Songok, Debbie Stewart, Julie Stokes, Shambavi Subbarao, Ruengpung Sutthent, Jun Takehisa, Amilcar Tanuri, Kok Keng Tee, Kiran Thapa, Michael Thomson, Tyna Tran, Willy Urassa, Hiroshi Ushijima, Philippe van de Perre, Guido van der Groen, Kristel van Laethem, Joep van Oosterhout, Ard van Sighem, Eric van Wijngaerden, Anne-Mieke Vandamme, Jurgen Vercauteren, Nicole Vidal, Lesley Wallace, Carolyn Williamson, Dawit Wolday, Jianqing Xu, Chunfu Yang, Linqi Zhang, and Rong Zhang
- Subjects
HIV ,subtype ,recombinant ,CRF ,URF ,vaccine ,Microbiology ,QR1-502 - Abstract
Global HIV-1 genetic diversity forms a major obstacle to the development of an HIV vaccine. It may be necessary to employ subtype-specific HIV-1 vaccines in individual countries according to their HIV-1 subtype distribution. We estimated the global and regional need for subtype-specific HIV-1 vaccines. We took into account the proportions of different HIV-1 variants circulating in each country, the genetic composition of HIV-1 recombinants, and the different genome segments (gag, pol, env) that may be incorporated into vaccines. We modeled different scenarios according to whether countries would employ subtype-specific HIV-1 vaccines against (1) the most common subtype; (2) subtypes contributing more than 5% of HIV infections; or (3) all circulating subtypes. For therapeutic vaccines targeting the most common HIV-1 subtype in each country, 16.5 million doses of subtype C vaccine were estimated globally, followed by subtypes A (14.3 million) and B (4.2 million). A vaccine based on env required 2.6 million subtype E doses, and a vaccine based on pol required 4.8 million subtype G doses. For prophylactic vaccines targeting the most common HIV-1 subtype in each country, 1.9 billion doses of subtype A vaccine were estimated globally, followed by subtype C (1.1 billion) and subtype B (1.0 billion). A vaccine based on env required 1.2 billion subtype E doses, and a vaccine based on pol required 0.3 billion subtype G doses. If subtype-specific HIV-1 vaccines are also directed against less common subtypes in each country, vaccines targeting subtypes D, F, H, and K are also needed and would require up to five times more vaccine doses in total. We conclude that to provide global coverage, subtype-specific HIV-1 vaccines need to be directed against subtypes A, B, and C. Vaccines targeting env also need to include subtype E and those targeting pol need to include subtype G.
- Published
- 2021
- Full Text
- View/download PDF
35. Prevalence of pretreatment HIV resistance to integrase inhibitors in West African and Southeast Asian countries.
- Author
-
Aghokeng, Avelin F, Ngo-Giang-Huong, Nicole, Huynh, Thu H K, Dagnra, Anoumou Y, Toni, Thomas D'Aquin, Maiga, Almoustapha I, Dramane, Kania, Eymard-Duvernay, Sabrina, Chaix, Marie-Laure, Calvez, Vincent, Descamps, Diane, and Group, ANRS12425 Study
- Subjects
HIV integrase inhibitors ,NON-nucleoside reverse transcriptase inhibitors ,DRUG resistance ,ANTIRETROVIRAL agents ,MIDDLE-income countries ,EBOLA virus - Abstract
Objectives Integrase strand transfer inhibitors (INSTIs) have been recently recommended as the preferred first-line option for antiretroviral treatment initiators in low- and middle-income countries (LMICs) in response to the growing circulation of resistant HIV to non-nucleoside reverse transcriptase inhibitors (NNRTIs). In this study, we estimated the frequency of pretreatment drug resistance (PDR) to INSTIs in West Africa and Southeast Asia. Materials and methods Using samples collected from 2015 to 2016, and previously used to assessed PI, NRTI and NNRTI resistance, we generated HIV integrase sequences and identified relevant INSTI PDR mutations using the Stanford and ANRS algorithms. Results We generated 353 integrase sequences. INSTI PDR frequency was low, 1.1% (4/353) overall, ranging from 0% to 6.3% according to country. However, frequency of PDR to any drug class was very high, 17.9% (95% CI: 13.9%–22.3%), and mostly associated with a high level of NNRTI PDR, 9.7%, and a moderate level of NRTI PDR, 5.3%. Conclusions Our results support the recent introduction of INSTIs in LMICs to improve treatment outcome in these settings, but also stress the need for effective actions to prevent uncontrolled emergence of drug resistance to this drug class. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. Low prevalence of syphilis infection among key populations in Togo in 2017: a national cross-sectional survey
- Author
-
Didier K. EKOUEVI, Alexandra M. BITTY-ANDERSON, Fifonsi A. GBEASOR-KOMLANVI, Yao R. KONU, Essèboè K. SEWU, Mounerou SALOU, and Claver A. DAGNRA
- Subjects
Syphilis ,HIV ,Prevalence ,Key populations ,Sub-Saharan Africa ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The World Health Organisation (WHO) recommends the screening of syphilis among populations highly exposed to HIV. However, data on the prevalence of syphilis in these populations are scarce in Togo. This study aimed at estimating the prevalence of syphilis among males who have sex with males (MSM), female sex workers (FSW) and drug users (DU) in Togo. Methods A cross-sectional bio-behavioral study was conducted in August and September 2017 using a respondent-driven sampling (RDS) method in eight major cities in Togo. A standardized questionnaire was used to record socio-demographic data and sexual behavior patterns. A blood sample was taken and SD Bioline Duo VIH/Syphilis rapid test was used to test for HIV and syphilis. Results A total of 2158 key populations (678 MSM, 1003 FSW and 477 DU), with an average age of 27.6 years (standard deviation 8.8 years) participated in the study. Prevalence of syphilis was 0.6% (95% CI = [0.3–1.0]) with no statistical significance between the three groups: null among MSM, 0.8% among FSW (95% CI = [0.37–1.63]) and 1.1% among DU (95% CI = [0.39–2.57]). There was no relation between HIV status and syphilis (p = 0.236). Among the 298 HIV-positive people, none was diagnosed with syphilis. Conclusions Findings from this study reveal a low prevalence rate of syphilis among key populations in Togo. Specific interventions into HIV prevention programs should be reinforced to eliminate syphilis in Togo.
- Published
- 2019
- Full Text
- View/download PDF
37. HIV testing uptake and prevalence among hospitalized older adults in Togo: A cross-sectional study.
- Author
-
Fifonsi Adjidossi Gbeasor-Komlanvi, Wendpouire Ida Carine Zida-Compaore, Arnold Junior Sadio, Martin Kouame Tchankoni, Balakiyem Magnim Kadangha, Mounerou Salou, Anoumou Claver Dagnra, and Didier Koumavi Ekouevi
- Subjects
Medicine ,Science - Abstract
ObjectivesThis study aimed to describe HIV testing uptake, as well as HIV prevalence and its associated factors among older adults aged ≥50 years in health facilities in Togo.MethodsA cross-sectional study was carried out from February 2018 to June 2019 among hospitalized older adults aged ≥50 years in tertiary and secondary hospitals in Togo. HIV testing was performed according to the national algorithm. Socio-demographic data and HIV testing history were collected using a standardized questionnaire.ResultsA total of 619 patients (43.9% female) of median age 61 years, (IQR: 55-70) were recruited and offered HIV testing. Among them, 25.7% had never previously tested for HIV. In total, 91.6% (567/619) accepted HIV testing while 8.4% (52/619) refused to be tested. Of those who tested, forty patients were HIV positive, yielding a prevalence of 7.1%. Twenty-three patients (57.5%) were newly diagnosed with HIV infection. In multivariable analysis, two factors were associated with HIV infection: living alone (aOR = 5.83; 95%CI = [2.26-14.53]) and being ConclusionThe majority of older adults in this study accepted testing for HIV and almost three in five HIV positive older adults were newly diagnosed with HIV as a result of this testing. There is an urgent need to integrate older adults into responses to the HIV epidemic and to strengthen targeted prevention care and treatment in this population.
- Published
- 2021
- Full Text
- View/download PDF
38. Analysis of antibodies involved in cases of discordant and indeterminate HIV serology in Togo from 2016 to 2018
- Author
-
Malewe Kolou, Charnelle Ingrid Kengne Tegue, Liza Koboyo Nadjir, Amivi Amenyah-Ehlan, Komlan Ali-Edje, Alassane Ouro-Medeli, Anoumou Dagnra, Mensah Douffan, and Mounerou Salou
- Abstract
Introduction: The national algorithm for the diagnosis of HIV infection in Togo leads sometimes to discordant or indeterminate results. The objective of this study was to explore the characteristics of discordant and indeterminate HIV serologies at the National Reference Center for HIV testing (CNR-VIH) in Togo. Material and methods: Through a cross-sectional study, we analyzed the cases of discordant and indeterminate serologies from 2016 to 2018 at the CNR-VIH. Three kind of tests were used. The first one is a screening test also called “test 1” is very sensitive while the confirmatory test also called “test 2” is very specific and used when the sample is reactive with test 1. The third test is an immunoblotting test which is used in case of discordance between test 1 and test 2 results. We used Vironostika HIV Uni-Form II Ag/Ab (BioMerieux, Geneva, Switzerland), Determine Alere HIV-1/2 Serum/Plasma (Chiba, Japan) and Murex HIV Ag/Ab (Dartford, UK) as test 1 while Tri-Dot HIV-I/II (J. Mitra & Pvt Ltd. New Delhi-110-India Co.) and Inno-Lia HIV-I/II Score (Fujirebio, Ghent, Belgium) were used respectively as test 2 and test 3. The test 3 allowed us to determine the antibodies involved in the occurrence of indeterminate serologies. A pool of indeterminate samples was tested for qualitative detection of HIV-1 RNA by RT-PCR using the NucliSENS EasyQ HIV-1 platform from BioMérieux. Results: A total of 555 discordant serologies corresponding to 4.3% of all serologies performed over the 3 years have been analyzed. The average age of the subjects tested was 36.9 ± 17.4 years and men were slightly more represented with a sex ratio of 1.03. Of the 555 samples, 81 (14.7%) were reactive with 53 (9.6%) cases of HIV-1 and 28 (5.1%) cases of HIV-2. Two hundred and thirty-one (41.6%) samples were negative while the remaining 243 (43.8%) were indeterminate. The frequencies of antibodies (Ab) against gp120, gp41, p24, p31, p17, gp105 and gp36 were respectively 10.3%, 46.3%, 15.5 %, 11.2%, 8.8%, 5.4% and 5.0%. Among the 257 cases for which gp41 Ab had been detected, 202 (78.6%) were cases of indeterminate serology with the only presence of gp41 Ab. Qualitative HIV-1 RNA testing on 71 (29.2%) indeterminate samples was negative. Conclusion: This study showed that discordant serologies are frequently found in our common practice in Togo. The use of immunoblotting tests has the advantage of making it possible to elucidate more than half of these discordant serologies. The contribution of molecular biology techniques is uncertain. The large majority of these indeterminate serologies are due to cross-reactions particularly with gp41. These indeterminate serologies require not only further studies for their understanding but also an update of HIV diagnosis algorithm in Togo.
- Published
- 2022
39. Prevalence and factors associated with psychological distress among key populations in Togo, 2017.
- Author
-
Martin Kouame Tchankoni, Fifonsi Adjidossi Gbeasor-Komlanvi, Alexandra Marie Bitty-Anderson, Essèboè Koffitsè Sewu, Wendpouiré Ida Carine Zida-Compaore, Ahmadou Alioum, Mounerou Salou, Claver Anoumou Dagnra, and Didier Koumavi Ekouevi
- Subjects
Medicine ,Science - Abstract
OBJECTIVES:Mental health is a largely neglected issue among in Sub-Saharan Africa, especially among key populations at risk for HIV. The aim of this study was to estimate the prevalence of psychological distress (PD) and to assess the factors associated among males who have sex with males (MSM), female sex workers (FSW) and drug users (DU) in Togo in 2017. STUDY DESIGN:A cross-sectional bio-behavioral study was conducted in August and September 2017 using a respondent-driven sampling (RDS) method, in eight cities in Togo. METHODS:A standardized questionnaire was used to record sociodemographic characteristics and sexual behaviors. The Alcohol Use Disorders Identification Test (AUDIT) and a subset of questions from the Tobacco Questions for Survey were used to assess alcohol and tobacco consumption respectively. PD was assessed with the Kessler Psychological Distress Scale. A blood sample was taken to test for HIV. Descriptive statistics, univariable and multivariable ordinal regression models were used for analysis. RESULTS:A total of 2044 key populations including 449 DU, 952 FSW and 643 MSM with a median age of 25 years, interquartile range (IQR) [21-32] were recruited. The overall prevalence of mild PD among the three populations was 19.9% (95%CI = [18.3-21.8]) and was 19.2% (95%CI = [17.5-20.9]) for severe/moderate PD. HIV prevalence was 13.7% (95%CI = [12.2-15.2]). High age (≥ 25 years) [aOR = 1.24 (95% CI: 1.02-1.50)], being HIV positive [aOR = 1.80 (95% CI: 1.31-2.48)] and hazardous alcohol consumption [aOR = 1.52 (95% CI: 1.22-1.87)] were risk factors for PD. Secondary [aOR = 0.52 (95% CI: 0.42-0.64)] or higher [aOR = 0.46 (95% CI: 0.32-0.64)] education levels were protective factors associated with PD. FSW [OR = 0.55 (95% CI: 0.43-0.68)] and MSM [OR = 0.33 (95% CI: 0.24-0.44)] were less likely to report PD compared with DU. CONCLUSION AND RECOMMENDATIONS:This is the first study conducted among a large, nationally representative sample of key populations in Togo. The prevalence of PD is high among these populations in Togo and was associated to HIV infection. The present study indicates that mental health care must be integrated within health programs in Togo with a special focus to key populations through interventions such as social support groups.
- Published
- 2020
- Full Text
- View/download PDF
40. Prevalence of SARS-CoV-2 among high-risk populations in Lomé (Togo) in 2020.
- Author
-
Wemboo Afiwa Halatoko, Yao Rodion Konu, Fifonsi Adjidossi Gbeasor-Komlanvi, Arnold Junior Sadio, Martin Kouame Tchankoni, Koffi Segbeaya Komlanvi, Mounerou Salou, Ameyo Monique Dorkenoo, Issaka Maman, Amétépé Agbobli, Majesté Ihou Wateba, Komi Séraphin Adjoh, Edem Goeh-Akue, Yem-Bla Kao, Innocent Kpeto, Paul Pana, Rebecca Kinde-Sossou, Agbeko Tamekloe, Josée Nayo-Apétsianyi, Simon-Pierre Hamadi Assane, Mireille Prine-David, Sossinou Marcel Awoussi, Mohaman Djibril, Moustafa Mijiyawa, Anoumou Claver Dagnra, and Didier Koumavi Ekouevi
- Subjects
Medicine ,Science - Abstract
BackgroundIn December 2019, the COVID-19 outbreak began in China and quickly spread throughout the world and was reclassified as a pandemic in March 2020. The first case of COVID-19 was declared in Togo on March 5. Two months later, few data were available to describe the circulation of the new coronavirus in the country.ObjectiveThis survey aimed to estimate the prevalence of SARS-CoV-2 in high-risk populations in Lomé.Materials and methodsFrom April 23, 2020, to May 8, 2020, we recruited a sample of participants from five sectors: health care, air transport, police, road transport and informal. We collected oropharyngeal swabs for direct detection through real-time reverse transcription polymerase chain reaction (rRT-PCR) and blood for antibody detection by serological tests. The overall prevalence (current and past) of infection was defined by positivity for both tests.ResultsA total of 955 participants with a median age of 36 (IQR 32-43) were included, and 71.6% (n = 684) were men. Approximately 22.1% (n = 212) were from the air transport sector, 20.5% (n = 196) were from the police sector, and 38.7% (n = 370) were from the health sector. Seven participants (0.7%, 95% CI: 0.3-1.6%) had a positive rRT-PCR test result at the time of recruitment, and nine (0.9%, 95% CI: 0.4-1.8%) were seropositive for IgM or IgG against SARS-CoV-2. We found an overall prevalence of 1.6% (n = 15), 95% CI: 0.9-2.6%.ConclusionThe prevalence of SARS-CoV-2 infection among high-risk populations in Lomé was relatively low and could be explained by the various measures taken by the Togolese government. Therefore, we recommend targeted screening.
- Published
- 2020
- Full Text
- View/download PDF
41. Severe Acute Bacterial Infections in Children With Sickle Cell Disease in Togo
- Author
-
Gbadoé, Adama Dodji, primary, Guédénon, Koffi Mawuse, additional, N’zonou, Magnoulelen, additional, Adamou, Mahamadou, additional, Akolly, Djatougbé, additional, Guédéhoussou, Têtê, additional, and Dagnra, Anoumou Yaotsé, additional
- Published
- 2023
- Full Text
- View/download PDF
42. Prevalence of hepatitis B among childbearing women and infant born to HBV-positive mothers in Togo
- Author
-
Ekouevi, Didier K., Larrouy, Lucile, Gbeasor-Komlanvi, Fifonsi A., Mackiewicz, Vincent, Tchankoni, Martin K., Bitty-Anderson, Alexandra M., Gnatou, Gatibe Yendu-suglpak, Sadio, Arnold, Salou, Mounerou, Dagnra, Claver A., Descamps, Diane, and Coffie, Patrick A.
- Published
- 2020
- Full Text
- View/download PDF
43. HIV pre-exposure prophylaxis for men who have sex with men in west Africa: a multicountry demonstration study
- Author
-
Christian Laurent, Bintou Dembélé Keita, Issifou Yaya, Gwenvael Le Guicher, Luis Sagaon-Teyssier, Mawuényégan K Agboyibor, Alou Coulibaly, Issa Traoré, Jean-Baptiste Malan, Irith De Baetselier, August Eubanks, Lucas Riegel, Daniela Rojas Castro, Hortense Fayé-Ketté, Amadou Koné, Souba Diandé, Claver A Dagnra, Laetitia Serrano, Fodié Diallo, Ephrem Mensah, Ter Tiero E Dah, Camille Anoma, Bea Vuylsteke, Bruno Spire, Sayouba Ouedraogo, Bruno Granouillac, Martine Peeters, Clotilde Couderc, Marion Mora, Gwenaëlle Maradan, Michel Bourrelly, Mohamed Mimi, Cyril Berenger, Sylvie Boyer, Paméla Palvadeau, Thijs Reyniers, Alassane Kader Maïga, Drissa Camara, Mahamadou Diarra, Aly Ouologuem, Naboh Sangaré, Abdoul Aziz Keita, Oumar Cissé, Fodé Traoré, Bréhima Abdrahamane Ouary, Ibrahima Kanta, Rachelle Kotchi, Niamkey Thomas Aka, Kpassou Julien Lokrou, Noufo Hamed Coulibaly, Ekissi Jean Armel Koffi, Dibi Frédéric N'guessan, Stéphane-Alain Babo Yoro, Adama Cissé, Ter Tiero Elias Dah, Camille Rajaonarivelo, Fayçal Rodrique Ouedraogo, Joseph Ouedraogo, Christian Coulibaly, Mamadou Ouedraogo, Ousseni Ilboudo, Abdoulazziz Traoré, Honoré Comsiambo, Mawuényégan Kouamivi Agboyibor, Anani Attisso, Anouwarsadat Kokouba, Aléda Mawuli Badjassim, Kouakou Kokouvi Selom Agbomadji, Messan Attiogbe, Kossi Jeff Yaka, Agbégnigan Lorette Ekon, Julien Bimba, Claver Anoumou Dagnra, Kokou Dominique Tegueni, Recherches Translationnelles sur le VIH et les maladies infectieuses endémiques er émergentes (TransVIHMI), Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut de Recherche pour le Développement (IRD)-Université de Yaoundé I-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)-Université Montpellier 1 (UM1), ARCAD Santé PLUS [Bamako, Mali], Sciences Economiques et Sociales de la Santé & Traitement de l'Information Médicale (SESSTIM - U1252 INSERM - Aix Marseille Univ - UMR 259 IRD), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Espoir Vie Togo [Lomé, Togo], Association African Solidarité [Ouagadougou, Burkina Faso], Espace Confiance [Abidjan, Côte d’Ivoire], Institute of Tropical Medicine [Antwerp] (ITM), Coalition PLUS [Pantin, France], Institut Pasteur de Côte d'Ivoire, Réseau International des Instituts Pasteur (RIIP), Université des sciences, des techniques et des technologies de Bamako (USTTB), Laboratoire National de Référence de la Tuberculose [Ouagadougou, Burkina Faso] (LNRT), Laboratoire National de Référence de la tuberculose [Lomé, Togo] (LNRT/CHU Lomé), CohMSM-PrEP Study Group: Christian Laurent, Issifou Yaya, Sayouba Ouedraogo, Bruno Granouillac, Gwenvael Le Guicher, Laetitia Serrano, Martine Peeters, Clotilde Couderc, Bruno Spire, Luis Sagaon-Teyssier, Marion Mora, Gwenaëlle Maradan, Michel Bourrelly, Mohamed Mimi, Cyril Berenger, Sylvie Boyer, Daniela Rojas Castro, Lucas Riegel, Paméla Palvadeau, Bea Vuylsteke, Irith De Baetselier, Thijs Reyniers, Bintou Dembélé Keita, Fodié Diallo, Alou Coulibaly, Alassane Kader Maïga, Drissa Camara, Mahamadou Diarra, Aly Ouologuem, Naboh Sangaré, Abdoul Aziz Keita, Oumar Cissé, Fodé Traoré, Bréhima Abdrahamane Ouary, Ibrahima Kanta, Camille Anoma, Jean-Baptiste Malan, Rachelle Kotchi, Niamkey Thomas Aka, Kpassou Julien Lokrou, Noufo Hamed Coulibaly, Ekissi Jean Armel Koffi, Dibi Frédéric N'guessan, Stéphane-Alain Babo Yoro, Adama Cissé, Ter Tiero Elias Dah, Issa Traoré, Camille Rajaonarivelo, Fayçal Rodrique Ouedraogo, Joseph Ouedraogo, Christian Coulibaly, Mamadou Ouedraogo, Ousseni Ilboudo, Abdoulazziz Traoré, Honoré Comsiambo, Ephrem Mensah, Mawuényégan Kouamivi Agboyibor, Anani Attisso, Anouwarsadat Kokouba, Aléda Mawuli Badjassim, Kouakou Kokouvi Selom Agbomadji, Messan Attiogbe, Kossi Jeff Yaka, Agbégnigan Lorette Ekon, Julien Bimba, Claver Anoumou Dagnra, Kokou Dominique Tegueni, Malbec, Odile, Institut de Recherche pour le Développement (IRD)-Université de Yaoundé I-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Université des Sciences, des Techniques et des Technologies de Bamako (USTTB), and Recherches Translationnelles sur le VIH et les maladies infectieuses endémiques et émergentes (TransVIHMI)
- Subjects
Adult ,Male ,0301 basic medicine ,Anti-HIV Agents ,Epidemiology ,Sexual Behavior ,[SDV]Life Sciences [q-bio] ,Immunology ,HIV Infections ,Pilot Projects ,Emtricitabine ,Men who have sex with men ,West africa ,Young Adult ,03 medical and health sciences ,Pre-exposure prophylaxis ,0302 clinical medicine ,Virology ,parasitic diseases ,Humans ,Medicine ,Prospective Studies ,030212 general & internal medicine ,Dosing ,Homosexuality, Male ,Tenofovir ,Prospective cohort study ,business.industry ,1. No poverty ,030112 virology ,3. Good health ,[SDV] Life Sciences [q-bio] ,Africa, Western ,Regimen ,Infectious Diseases ,Cohort ,Pre-Exposure Prophylaxis ,business ,Demography ,medicine.drug - Abstract
International audience; Background HIV pre-exposure prophylaxis (PrEP) data in men who have sex with men (MSM) in west Africa are essential to guide its large-scale implementation. We assessed the uptake of event-driven and daily PrEP, HIV incidence, and changes over time in sexual behaviours and prevalence of bacterial sexually transmitted infections (STIs) in MSM in Burkina Faso, Côte d'Ivoire, Mali, and Togo. Methods We did a prospective cohort study from Nov 20, 2017, to April 14, 2020, in four community-based clinics in Abidjan (Côte d'Ivoire), Bamako (Mali), Lomé (Togo), and Ouagadougou (Burkina Faso). Participants were MSM aged 18 years or older at substantial risk of HIV infection. Participants could choose between event-driven (2+1+1 dosing) and daily oral PrEP (tenofovir disoproxil fumarate 300 mg plus emtricitabine 200 mg), switch regimen, and discontinue or restart PrEP. We compared HIV incidence in this study with that of the same cohort before the availability of PrEP (CohMSM). Statistical analysis included the Kaplan-Meier method and mixed-effects regression models. This study is registered with ClinicalTrials.gov, NCT03459157. Findings We followed up 598 participants for a total of 743•6 person-years. At enrolment, 445 (74%) of 598 participants chose event-driven PrEP and 153 (26%) of 598 chose daily PrEP. 60 (13%) of 445 and 65 (42%) of 153 partici pants switched PrEP regimen at least once (p
- Published
- 2021
44. To Pool or Not to Pool Samples for Sexually Transmitted Infections Detection in Men Who Have Sex With Men? An Evaluation of a New Pooling Method Using the GeneXpert Instrument in West Africa
- Author
-
De Baetselier, Irith, Vuylsteke, Bea, Yaya, Issifou, Dagnra, Anoumou, Diandé, Souba, Mensah, Ephrem, Dah, Elias, Anoma, Camille, Koné, Amadou, Fayé-Ketté, Hortense, Yeo, Alain, Dembélé Keita, Bintou, Laurent, Christian, and Crucitti, Tania
- Published
- 2020
- Full Text
- View/download PDF
45. Challenges of scale-up to dolutegravir-based regimens in sub-Saharan Africa
- Author
-
Salou, Mounerou, Butel, Christelle, Comlan, Adjo S., Konou, Abla A., Tegueni, Kokou, Ehlan, Amivi, Lack, Fiali, Dossim, Sika, Ayouba, Ahidjo, Delaporte, Eric, Dagnra, Anoumou Y., and Peeters, Martine
- Published
- 2020
- Full Text
- View/download PDF
46. Prevalence of Malaria and Covid-19 in Febrile Patients in Lomé, Togo in 2020
- Author
-
Ameyo Monique Dorkenoo, Fifonsi Adjidossi Gbeasor-Komlanvi, Komivi Gbada, Wendpouiré Ida Carine Zida-Compaore, Diwaba Teou, Yao Rodion Konu, Fiali Lack, Arnold Junior Sadio, Martin Kouame Tchankoni, Anoumou Claver Dagnra, and Didier Koumavi Ekouevi
- Subjects
Parasitology - Published
- 2022
47. Prevalence and distribution of Human Papillomavirus (HPV) genotypes among HIV infected women in Lomé, Togo.
- Author
-
Yawo Tufa Nyasenu, Fifonsi Adjidossi Gbeasor-Komlanvi, Amivi Ehlan, Sabi Abdul-Raouf Issa, Sika Dossim, Malewe Kolou, Brice Martial Yambiyo, Mireille Prince-David, Mounerou Salou, Didier Koumavi Ekouevi, and Anoumou Dagnra
- Subjects
Medicine ,Science - Abstract
CONCLUSION:This study showed the diversity of circulating HPV genotypes in Togo. Programs of HPV vaccination and early detection of benign or precancerous lesions should be implemented to reduce cancer-related comorbidities.
- Published
- 2019
- Full Text
- View/download PDF
48. Early Evidence of Impact of Monovalent Rotavirus Vaccine in Togo
- Author
-
Tsolenyanu, Enyonam, Mwenda, Jason M., Dagnra, Anoumou, Leshem, Eyal, Godonou, Mawussi, Nassoury, Ibrahim, Landoh, Dadja, Tate, Jacqueline E., Atakouma, Yawo, and Parashar, Umesh D.
- Published
- 2016
49. Prévalence de intertrigo inter-orteil chez les gendarmes des forces armées togolaises en stage à Lomé (Togo)
- Author
-
Sossou, E., Dorkenoo, A., Akata, E., Adjetey-Toglozombio, A. K., Ataba, E., Lack, F., and Dagnra, A.
- Subjects
Inter-trigo, prevalence, gendarmes, Lomé -Togo - Abstract
Introduction : L’intertrigo inter-orteil est une mycose cutanée superficielle souvent favorisée par certaines conditions dont le port fréquent de chaussures fermées. Le corps de métier des forces armées est souvent confronté à cette situation faisant de lui, un groupe à risque. L’objectif de cette étude est d’estimer la prévalence de l'intertrigo inter-orteil chez les gendarmes au Togo.Méthodes : Il s’est agi d’une étude transversale analytique, réalisée de novembre 2019 à mars 2020 et qui a porté sur des gendarmes en stage qui ont bénéficié d’un examen clinique des orteils et de prélèvements en cas de lésions suspectes. Chaque prélèvement après un examen direct, a été ensemencé sur milieux Sabouraud avec chloramphénicol et cycloheximide.Résultats : Un total de 357 gendarmes a été enrôlé dont l’âge moyen était de 33,9 ± 3,3 ans, avec un sex-ratio (H/F) de 21,3. Les lésions cliniques suspectes étaient notées chez 8,7% d’entre eux. La prévalence de l’intertrigo inter-orteil a été de 4,5 % et les mycètes identifiés ont été les dermatophytes du genre Trichophyton (29%), et Epidermophyton floccosum (6,5%), les levures (6,5%), et Scytalidium hyalinum (3,2%).Pas de franche corrélation entre l’intertrigo inter-orteil et les facteurs de risque étudiés.Conclusion : L’intertrigo inter-orteil est peu fréquent dans la population d’étude. Les mycètes en cause sont dominés par les dermatophytes. Des mesures sont à prendre pour sensibiliser ce groupe à risque dans le cadre de la prévention de cette mycose Introduction: Inter-toe intertrigo is a superficial cutaneous fungus that is often favoured by certain conditions, including the frequent wearing of closed shoes. The armed forces are often confronted with this situation, making them a group at risk. The objective of this study is to estimate the prevalence of inter-trigo among gendarmes in Togo.Methods: This was an analytical cross-sectional study, carried out from November 2019 to March 2020, which focused on gendarmes on probation who underwent a clinical examination of the toes and took samples in case of suspicious lesions. Each sample, after direct examination, was inoculated on Sabouraud media with chloramphenicol and cycloheximide.Results: A total of 357 gendarmes were enrolled with a mean age of 33.9 ± 3.3 years, a sex ratio of 21.3 (M/F), with suspicious clinical lesions noted in 8.7% of them. The prevalence of inter-trigo was 4.5% and the fungi identified were dermatophytes of the genus Trichophyton (29%), and Epidermophyton floccosum (6.5%), yeasts (6.5%), and Scytalidium hyalinum (3.2%).No clear correlation between inter-trigo and the risk factors studied.Conclusion: Inter-toe intertrigo is uncommon in the study population. The fungi involved are dominated by dermatophytes. Measures should be taken to raise awareness among this at-risk group as part of the prevention of this mycosis
- Published
- 2023
50. Hépatites B et C chez les adolescents de la rue au Togo en 2021 : prévalence et profil vaccinal
- Author
-
Sadio, A.J., Kouanfack, H.R., Dagnra, A.C., Amenyah-Ehlan, A.P., Ferré, V.M., Descamps, D., Charpentier, C., and Ekouevi, D.
- Published
- 2023
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.