Search

Your search keyword '"Njouom, Richard"' showing total 888 results
Start Over Author "Njouom, Richard"
888 results on '"Njouom, Richard"'

1. Acceptability and Feasibility of the Plasma Separation Card for an Integrated Model of Care for HBV and HCV Screening Among People Attending HIV Clinics in Cameroon and Uganda

Author

Picchio, Camila A, Nicolàs, Aina, Ayemfouo Fofou, Ironne Valdèse, Kasone, Viola, Guewo-Fokeng, Magellan, Tagny, Claude T, Nanyonjo, Teddy, Nansumba, Hellen, Kouongni, Yves Nacel, Sezawo Kamdjeu, Rita Gaëlle Epse, Seremba, Emmanuel, Kouanfack, Charles, Ssewanyana, Isaac, Njouom, Richard, Segura, Ariadna Rando, Rodríguez-Frías, Francisco, Mbanya, Jean Claude, Ocama, Ponsiano, and Lazarus, Jeffrey V.

Published
2024
Full Text
View/download PDF

4. Concurrent Clade I and Clade II Monkeypox Virus Circulation, Cameroon, 1979-2022

Author

Djuicy, Delia D., Sadeuh-Mba, Serge A., Bilounga, Chanceline N., Yonga, Martial G., Tchatchueng-Mbougua, Jules B., Essima, Gael D., Esso, Linda, Nguidjol, Ines M.E., Metomb, Steve F., Chebo, Cornelius, Agwe, Samuel M., Ankone, Placide A., Ngonla, Firmin N.N., Mossi, Hans M., Etoundi, Alain G.M., Eyangoh, Sara I., Kazanji, Mirdad, and Njouom, Richard

Subjects
Human monkeypox -- Causes of, DNA viruses -- Identification and classification -- Genetic aspects -- Distribution, Company distribution practices, Health
Abstract

Monkeypox virus (MPXV) is an emerging zoonotic Orthopoxvirus causing mpox in humans, a disease similar to the eradicated smallpox (1). Since identification in a monkey in 1958 (2) and a [...]

Published
2024
Full Text
View/download PDF

6. Systematic review: Global host range, case fatality and detection rates of Mycobacterium ulcerans in humans and potential environmental sources

Author

Tchatchouang, Serges, Andre Mbongue Mikangue, Chris, Kenmoe, Sebastien, Bowo-Ngandji, Arnol, Mahamat, Gadji, Thierry Ebogo-Belobo, Jean, Serge Mbaga, Donatien, Rodrigue Foe-Essomba, Joseph, Numfor, Hycenth, Irma Kame-Ngasse, Ginette, Nyebe, Inès, Bosco Taya-Fokou, Jean, Zemnou-Tepap, Cromwel, Félicité Yéngué, Jacqueline, Nina Magoudjou-Pekam, Jeannette, Gertrude Djukouo, Larissa, Antoinette Kenmegne Noumbissi, Marie, Kenfack-Momo, Raoul, Aimee Touangnou-Chamda, Sabine, Flore Feudjio, Alfloditte, Gael Oyono, Martin, Paola Demeni Emoh, Cynthia, Raoul Tazokong, Hervé, Zeukeng, Francis, Kengne-Ndé, Cyprien, Njouom, Richard, Flore Donkeng Donfack, Valerie, and Eyangoh, Sara

Published
2024
Full Text
View/download PDF

7. 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

8. Spread of SARS-CoV-2 Infection in Adult Populations in Cameroon: A Repeated Cross-Sectional Study Among Blood Donors in the Cities of Yaoundé and Douala

Author

Sandie, Arsène Brunelle, Ngo Sack, Françoise, Medi Sike, Christiane Ingrid, Mendimi Nkodo, Joseph, Ngegni, Hortense, Ateba Mimfoumou, Haverie Ghislaine, Lobe, Sarah Audrey, Choualeu Noumbissi, Diane, Tchuensou Mfoubi, Fabrice, Tagnouokam Ngoupo, Paul Alain, Ayong, Lawrence, Njouom, Richard, and Tejiokem, Mathurin Cyrille

Published
2023
Full Text
View/download PDF

9. Genomic surveillance of SARS-CoV-2 reveals highest severity and mortality of delta over other variants: evidence from Cameroon

Author

Fokam, Joseph, Essomba, Rene Ghislain, Njouom, Richard, Okomo, Marie-Claire A., Eyangoh, Sara, Godwe, Celestin, Tegomoh, Bryan, Otshudiema, John O., Nwobegahay, Julius, Ndip, Lucy, Akenji, Blaise, Takou, Desire, Moctar, Mohamed M. M., Mbah, Cleophas Kahtita, Ndze, Valantine Ngum, Maidadi-Foudi, Martin, Kouanfack, Charles, Tonmeu, Sandrine, Ngono, Dorine, Nkengasong, John, Ndembi, Nicaise, Bissek, Anne-Cecile Z. K., Mouangue, Christian, Ndongo, Chanceline B., Epée, Emilienne, Mandeng, Nadia, Kamso Belinga, Sandrine, Ayouba, Ahidjo, Fernandez, Nicolas, Tongo, Marcel, Colizzi, Vittorio, Halle-Ekane, Gregory-Edie, Perno, Carlo-Federico, Ndjolo, Alexis, Ndongmo, Clement B., Shang, Judith, Esso, Linda, de-Tulio, Oliviera, Diagne, Moussa Moise, Boum, II, Yap, Mballa, Georges A. E., and Njock, Louis R.

Published
2023
Full Text
View/download PDF

11. Global prevalence, cascade of care, and prophylaxis coverage of hepatitis B in 2022: a modelling study

Author

Razavi-Shearer, Devin, Gamkrelidze, Ivane, Pan, Calvin, Jia, Jidong, Berg, Thomas, Gray, Richard, Lim, Young-Suk, Chen, Chien-Jen, Ocama, Ponsiano, Desalegn, Hailemichael, Abbas, Zaigham, Abdallah, Ayat, Aghemo, Alessio, Ahmadbekova, Sabohat, Ahn, Sang Hoon, Aho, Inka, Akarca, Ulus, Al Masri, Nasser, Alalwan, Abduljaleel, Alavian, Seyed, Al-Busafi, Said, Aleman, Soo, Alfaleh, Faleh, Alghamdi, Abdullah, Al-Hamoudi, Waleed, Aljumah, Abdulrahman, Al-Naamani, Khalid, Al-Rifai, Ahmad, Alserkal, Yousif, Altraif, Ibrahim, Amarsanaa, Jazag, Anderson, Motswedi, Andersson, Monique, Armstrong, Paige, Asselah, Tarik, Athanasakis, Kostas, Baatarkhuu, Oidov, Ben-Ari, Ziv, Bensalem, Aicha, Bessone, Fernando, Biondi, Mia, Bizri, Abdul Rahman, Blach, Sarah, Braga, Wornei, Brandão-Mello, Carlos, Brosgart, Carol, Brown, Kimberly, Brown, Jr, Robert, Bruggmann, Philip, Brunetto, Maurizia, Buti, Maria, Cabezas, Joaquin, Casanovas, Teresa, Chae, Chungman, Chan, Henry Lik Yuen, Cheinquer, Hugo, Chen, Pei-Jer, Cheng, Kent Jason, Cheon, Myeong-Eun, Chien, Cheng-Hung, Choudhuri, Gourdas, Christensen, Peer Brehm, Chuang, Wan-Long, Chulanov, Vladimir, Cisneros, Laura, Coffin, Carla, Contreras, Fernando, Coppola, Nicola, Cornberg, Markus, Cowie, Benjamin, Cramp, Matthew, Craxi, Antonio, Crespo, Javier, Cui, Fuqiang, Cunningham, Chris, Dalgard, Olav, De Knegt, Robert, De Ledinghen, Victor, Dore, Gregory, Drazilova, Sylvia, Duberg, Ann-Sofi, Egeonu, Steve, Elbadri, Mohammed, El-Kassas, Mohamed, El-Sayed, Manal, Estes, Chris, Etzion, Ohad, Farag, Elmobashar, Ferradini, Laurent, Ferreira, Paulo, Flisiak, Robert, Forns, Xavier, Frankova, Sona, Fung, James, Gane, Edward, Garcia, Virginia, García-Samaniego, Javier, Gemilyan, Manik, Genov, Jordan, Gheorghe, Liliana, Gholam, Pierre, Gish, Robert, Goleij, Pouya, Gottfredsson, Magnus, Grebely, Jason, Gschwantler, Michael, Guingane, Nanelin Alice, Hajarizadeh, Behzad, Hamid, Saeed, Hamoudi, Waseem, Harris, Aaron, Hasan, Irsan, Hatzakis, Angelos, Hellard, Margaret, Hercun, Julian, Hernandez, Javier, Hockicková, Ivana, Hsu, Yao-Chun, Hu, Ching-Chih, Husa, Petr, Janicko, Martin, Janjua, Naveed, Jarcuska, Peter, Jaroszewicz, Jerzy, Jelev, Deian, Jeruma, Agita, Johannessen, Asgeir, Kåberg, Martin, Kaita, Kelly, Kaliaskarova, Kulpash, Kao, Jia-Horng, Kelly-Hanku, Angela, Khamis, Faryal, Khan, Aamir, Kheir, Omer, Khoudri, Ibtissam, Kondili, Loreta, Konysbekova, Aliya, Kristian, Pavol, Kwon, Jisoo, Lagging, Martin, Laleman, Wim, Lampertico, Pietro, Lavanchy, Daniel, Lázaro, Pablo, Lazarus, Jeffrey V, Lee, Alice, Lee, Mei-Hsuan, Liakina, Valentina, Lukšić, Boris, Malekzadeh, Reza, Malu, Abraham, Marinho, Rui, Mendes-Correa, Maria Cássia, Merat, Shahin, Meshesha, Berhane Redae, Midgard, Håvard, Mohamed, Rosmawati, Mokhbat, Jacques, Mooneyhan, Ellen, Moreno, Christophe, Mortgat, Laure, Müllhaupt, Beat, Musabaev, Erkin, Muyldermans, Gaëtan, Naveira, Marcelo, Negro, Francesco, Nersesov, Alexander, Nguyen, Van Thi Thuy, Ning, Qing, Njouom, Richard, Ntagirabiri, Rénovat, Nurmatov, Zuridin, Oguche, Stephen, Omuemu, Casimir, Ong, Janus, Opare-Sem, Ohene, Örmeci, Necati, Orrego, Mauricio, Osiowy, Carla, Papatheodoridis, George, Peck-Radosavljevic, Markus, Pessoa, Mário, Pham, Trang, Phillips, Richard, Pimenov, Nikolay, Pincay-Rodríguez, Loreley, Plaseska-Karanfilska, Dijana, Pop, Cora, Poustchi, Hossein, Prabdial-Sing, Nishi, Qureshi, Huma, Ramji, Alnoor, Rautiainen, Henna, Razavi-Shearer, Kathryn, Remak, William, Ribeiro, Sofia, Ridruejo, Ezequiel, Ríos-Hincapié, Cielo, Robalino, Marcia, Roberts, Lewis, Roberts, Stuart, Rodríguez, Manuel, Roulot, Dominique, Rwegasha, John, Ryder, Stephen, Sadirova, Shakhlo, Saeed, Umar, Safadi, Rifaat, Sagalova, Olga, Said, Sanaa, Salupere, Riina, Sanai, Faisal, Sanchez-Avila, Juan F, Saraswat, Vivek, Sargsyants, Narina, Sarrazin, Christoph, Sarybayeva, Gulya, Schréter, Ivan, Seguin-Devaux, Carole, Seto, Wai-Kay, Shah, Samir, Sharara, Ala, Sheikh, Mahdi, Shouval, Daniel, Sievert, William, Simojoki, Kaarlo, Simonova, Marieta, Sinn, Dong Hyun, Sonderup, Mark, Sonneveld, Milan, Spearman, C Wendy, Sperl, Jan, Stauber, Rudolf, Stedman, Catherine, Sypsa, Vana, Tacke, Frank, Tan, Soek-Siam, Tanaka, Junko, Tergast, Tammo, Terrault, Norah, Thompson, Alexander, Thompson, Peyton, Tolmane, Ieva, Tomasiewicz, Krzysztof, Tsang, Tak-Yin, Uzochukwu, Benjamin, Van Welzen, Berend, Vanwolleghem, Thomas, Vince, Adriana, Voeller, Alexis, Waheed, Yasir, Waked, Imam, Wallace, Jack, Wang, Cong, Weis, Nina, Wong, Grace, Wong, Vincent, Wu, Jaw-Ching, Yaghi, Cesar, Yesmembetov, Kakharman, Yip, Terry, Yosry, Ayman, Yu, Ming-Lung, Yuen, Man-Fung, Yurdaydin, Cihan, Zeuzem, Stefan, Zuckerman, Eli, and Razavi, Homie

Published
2023
Full Text
View/download PDF

15. Global change in hepatitis C virus prevalence and cascade of care between 2015 and 2020: a modelling study

Author

Blach, Sarah, Terrault, Norah A, Tacke, Frank, Gamkrelidze, Ivane, Craxi, Antonio, Tanaka, Junko, Waked, Imam, Dore, Gregory J, Abbas, Zaigham, Abdallah, Ayat R, Abdulla, Maheeba, Aghemo, Alessio, Aho, Inka, Akarca, Ulus S, Alalwan, Abduljaleel M, Alanko Blomé, Marianne, Al-Busafi, Said A, Aleman, Soo, Alghamdi, Abdullah S, Al-Hamoudi, Waleed K, Aljumah, Abdulrahman A, Al-Naamani, Khalid, Al Serkal, Yousif M, Altraif, Ibrahim H, Anand, Anil C, Anderson, Motswedi, Andersson, Monique I, Athanasakis, Kostas, Baatarkhuu, Oidov, Bakieva, Shokhista R, Ben-Ari, Ziv, Bessone, Fernando, Biondi, Mia J, Bizri, Abdul Rahman N, Brandão-Mello, Carlos E, Brigida, Krestina, Brown, Kimberly A, Brown, Jr, Robert S, Bruggmann, Philip, Brunetto, Maurizia R, Busschots, Dana, Buti, Maria, Butsashvili, Maia, Cabezas, Joaquin, Chae, Chungman, Chaloska Ivanova, Viktorija, Chan, Henry Lik Yuen, Cheinquer, Hugo, Cheng, Kent Jason, Cheon, Myeong-Eun, Chien, Cheng-Hung, Chien, Rong-Nan, Choudhuri, Gourdas, Christensen, Peer Brehm, Chuang, Wan-Long, Chulanov, Vladimir, Cisneros, Laura E, Coco, Barbara, Contreras, Fernando A, Cornberg, Markus, Cramp, Matthew E, Crespo, Javier, Cui, Fuqiang, Cunningham, Chris W, Dagher Abou, Lucy, Dalgard, Olav, Dao, Doan Y, De Ledinghen, Victor, Derbala, Moutaz F, Deuba, Keshab, Dhindsa, Karan, Djauzi, Samsuridjal, Drazilova, Sylvia, Duberg, Ann-Sofi, Elbadri, Mohammed, El-Sayed, Manal H, Esmat, Gamal, Estes, Chris, Ezzat, Sameera, Färkkilä, Martti A, Ferradini, Laurent, Ferraz, Maria Lucia G, Ferreira, Paulo R A, Filipec Kanizaj, Tajana, Flisiak, Robert, Frankova, Sona, Fung, James, Gamkrelidze, Amiran, Gane, Edward, Garcia, Virginia, García-Samaniego, Javier, Gemilyan, Manik, Genov, Jordan, Gheorghe, Liliana S, Gholam, Pierre M, Goldis, Adrian, Gottfredsson, Magnus, Gray, Richard T, Grebely, Jason, Gschwantler, Michael, Hajarizadeh, Behzad, Hamid, Saeed S, Hamoudi, Waseem, Hatzakis, Angelos, Hellard, Margaret E, Himatt, Sayed, Hofer, Harald, Hrstic, Irena, Hunyady, Bela, Husa, Petr, Husic-Selimovic, Azra, Jafri, Wasim S M, Janicko, Martin, Janjua, Naveed, Jarcuska, Peter, Jaroszewicz, Jerzy, Jerkeman, Anna, Jeruma, Agita, Jia, Jidong, Jonasson, Jon G, Kåberg, Martin, Kaita, Kelly D E, Kaliaskarova, Kulpash S, Kao, Jia-Horng, Kasymov, Omor T, Kelly-Hanku, Angela, Khamis, Faryal, Khamis, Jawad, Khan, Aamir G, Khandu, Lekey, Khoudri, Ibtissam, Kielland, Knut B, Kim, Do Young, Kodjoh, Nicolas, Kondili, Loreta A, Krajden, Mel, Krarup, Henrik Bygum, Kristian, Pavol, Kwon, Jisoo A, Lagging, Martin, Laleman, Wim, Lao, Wai Cheung, Lavanchy, Daniel, Lázaro, Pablo, Lazarus, Jeffrey V, Lee, Alice U, Lee, Mei-Hsuan, Li, Michael K K, Liakina, Valentina, Lim, Young-Suk, Löve, Arthur, Lukšić, Boris, Machekera, Shepherd Mufudzi, Malu, Abraham O, Marinho, Rui T, Maticic, Mojca, Mekonnen, Hailemichael D, Mendes-Correa, Maria Cássia, Mendez-Sanchez, Nahum, Merat, Shahin, Meshesha, Berhane Redae, Midgard, Håvard, Mills, Mike, Mohamed, Rosmawati, Mooneyhan, Ellen, Moreno, Christophe, Muljono, David H, Müllhaupt, Beat, Musabaev, Erkin, Muyldermans, Gaëtan, Nartey, Yvonne Ayerki, Naveira, Marcelo C M, Negro, Francesco, Nersesov, Alexander V, Njouom, Richard, Ntagirabiri, Rénovat, Nurmatov, Zuridin S, Obekpa, Solomon A, Oguche, Stephen, Olafsson, Sigurdur, Ong, Janus P, Opare-Sem, Ohene K, Orrego, Mauricio, Øvrehus, Anne L, Pan, Calvin Q, Papatheodoridis, George V, Peck-Radosavljevic, Markus, Pessoa, Mário G, Phillips, Richard O, Pimenov, Nikolay, Plaseska-Karanfilska, Dijana, Prabdial-Sing, Nishi N, Puri, Pankaj, Qureshi, Huma, Rahman, Aninda, Ramji, Alnoor, Razavi-Shearer, Devin M, Razavi-Shearer, Kathryn, Ridruejo, Ezequiel, Ríos-Hincapié, Cielo Y, Rizvi, S M Shahriar, Robaeys, Geert K M M, Roberts, Lewis R, Roberts, Stuart K, Ryder, Stephen D, Sadirova, Shakhlo, Saeed, Umar, Safadi, Rifaat, Sagalova, Olga, Said, Sanaa S, Salupere, Riina, Sanai, Faisal M, Sanchez-Avila, Juan F, Saraswat, Vivek A, Sarrazin, Christoph, Sarybayeva, Gulya, Seguin-Devaux, Carole, Sharara, Ala I, Sheikh, Mahdi, Shewaye, Abate B, Sievert, William, Simojoki, Kaarlo, Simonova, Marieta Y, Sonderup, Mark W, Spearman, C Wendy, Sperl, Jan, Stauber, Rudolf E, Stedman, Catherine A M, Su, Tung-Hung, Suleiman, Anita, Sypsa, Vana, Tamayo Antabak, Natalia, Tan, Soek-Siam, Tergast, Tammo L, Thurairajah, Prem H, Tolmane, Ieva, Tomasiewicz, Krzysztof, Tsereteli, Maia, Uzochukwu, Benjamin S C, Van De Vijver, David A M C, Van Santen, Daniela K, Van Vlierberghe, Hans, Van Welzen, Berend, Vanwolleghem, Thomas, Vélez-Möller, Patricia, Villamil, Federico, Vince, Adriana, Waheed, Yasir, Weis, Nina, Wong, Vincent W-S, Yaghi, Cesar G, Yesmembetov, Kakharman, Yosry, Ayman, Yuen, Man-Fung, Yunihastuti, Evy, Zeuzem, Stefan, Zuckerman, Eli, and Razavi, Homie A

Published
2022
Full Text
View/download PDF

16. Residual risk of mother-to-child transmission of hepatitis B virus infection despite timely birth-dose vaccination in Cameroon (ANRS 12303): a single-centre, longitudinal observational study

Author

Shimakawa, Yusuke, Veillon, Pascal, Birguel, Jacques, Pivert, Adeline, Sauvage, Virginie, Guillou-Guillemette, Hélène Le, Roger, Steven, Njouom, Richard, Ducancelle, Alexandra, Amta, Pierre, Huraux, Jean Marie, Adoukara, Jean-Pierre, and Lunel-Fabiani, Françoise

Published
2022
Full Text
View/download PDF

17. High Seroreactivities to Orthoebolaviruses in Rural Cameroon: A Case-Control Study on Nonhuman Primate Bites and a Cross-sectional Survey in Rural Populations.

Author

Ramassamy, Jill-Léa, Ayouba, Ahidjo, Thaurignac, Guillaume, Ndongo, Chanceline Bilounga, Nnuka, Patrick, Betsem, Edouard, Njouom, Richard, Ngole, Eitel Mpoudi, Vanhomwegen, Jessica, Hoinard, Damien, England, Patrick, Journeaux, Alexandra, Picard, Caroline, Thomas, Damien, Pannetier, Delphine, Baize, Sylvain, Delaporte, Eric, Peeters, Martine, and Gessain, Antoine

Subjects
EBOLA virus, VIRAL proteins, RURAL population, HEMORRHAGIC fever, FILOVIRIDAE
Abstract

Background Ebola (EBOV) and Sudan (SUDV) orthoebolaviruses are responsible for lethal hemorrhagic fever outbreaks in humans in Central and West Africa, and in apes that can be at the source of human outbreaks for EBOV. Methods To assess the risk of exposure to orthoebolaviruses through contact with nonhuman primates (NHP), we tested the presence of antibodies against different viral proteins with a microsphere-based multiplex immunoassay in a case-control study on bites from NHPs in forest areas from Cameroon (n = 795) and in cross-sectional surveys from other rural populations (n = 622) of the same country. Results Seroreactivities against at least 2 viral proteins were detected in 13% and 12% of the samples for EBOV and SUDV, respectively. Probability of seroreactivity was not associated with history of NHP bites, but was 3 times higher in Pygmies compared to Bantus. Although no neutralizing antibodies to EBOV and SUDV were detected in a selected series of highly reactive samples, avidity results indicate strong affinity to SUDV antigens. Conclusions The detection of high level of seroreactivities against orthoebolaviruses in rural Cameroon, where no outbreaks have been reported, raises the possibilities of silent circulation of orthoebolaviruses, or of other not yet documented filoviruses, in these forested regions. Article's main point Our study found high seroreactivities to Ebola and Sudan orthoebolavirus antigens in rural Cameroonian populations, especially among Pygmies, despite no reported outbreaks. This suggests potential silent circulation of orthoebolaviruses or unknown filoviruses, highlighting the need for further surveillance and research. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

18. Detection and characterization of HIV‐1 group O and HIV‐2 in the Central African Republic.

Author

Moussa, Sandrine, Tagnouokam‐Ngoupo, Paul Alain, Tombette, Fabienne, Manirakiza, Alexandre, Boum, Yap, Vernet, Guy, Njouom, Richard, Belec, Laurent, Plantier, Jean‐Christophe, and Kfutwah, Anfumbom

Subjects
DIAGNOSTIC use of polymerase chain reaction, DIAGNOSIS of HIV infections, MOLECULAR epidemiology, GENETIC variation, BLOOD sampling
Abstract

The Central African Republic (CAR) is characterized by widespread HIV epidemic with notable prevalence and genetic diversity. We herein analysed the genetic diversity of atypical non‐M HIV‐1 strains. In‐house serotyping assays for variants of HIV‐1 (M, N, O, P) and HIV‐2 were used to test a biological collection of 6092 HIV‐seropositive blood samples collected between 2003 and 2014 at the Institut Pasteur de Bangui. Samples indicative of recombinant M/O groups, HIV‐2, or those that yield doubtful/negative results underwent further PCR tests and sequencing. We found six atypical HIV strains: specifically, three (0.05%) HIV‐1 group O strains (subtype H) detected in samples from 2005, 2008 and 2009, alongside three (0.05%) HIV‐2 strains (two group A and one group B) identified in samples from 2007 and 2009. HIV‐1/O strains showed a genetic link to Cameroon and Gabon strains. This study highlights the dominance of HIV‐1/M in the CAR's HIV epidemic over time and underscores the infrequent occurrence of HIV‐1 group O and HIV‐2 strains. These findings validate the efficacy of WHO‐recommended HIV testing protocols and emphasize the need for adaptive surveillance and management strategies to confront the complexities introduced by the genetic diversity of HIV strains. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

19. Translating Predictions of Zoonotic Viruses for Policymakers.

Author

Judson, Seth D, LeBreton, Matthew, Fuller, Trevon, Hoffman, Risa M, Njabo, Kevin, Brewer, Timothy F, Dibongue, Elsa, Diffo, Joseph, Kameni, Jean-Marc Feussom, Loul, Severin, Nchinda, Godwin W, Njouom, Richard, Nwobegahay, Julius, Takuo, Jean Michel, Torimiro, Judith N, Wade, Abel, and Smith, Thomas B

Subjects
Animals, Animals, Wild, Humans, Zoonoses, Rift Valley Fever, Hemorrhagic Fever, Crimean, Lassa Fever, Hemorrhagic Fever, Ebola, Marburg Virus Disease, Policy Making, Cameroon, Geographic Mapping, Arenaviridae, Bunyaviridae, Ebola virus, Filoviridae, Hemorrhagic fevers, Risk, Viral, Virus diseases, Viruses, Ecology, Veterinary Sciences, Public Health and Health Services
Abstract

Recent outbreaks of Ebola virus disease and Zika virus disease highlight the need for disseminating accurate predictions of emerging zoonotic viruses to national governments for disease surveillance and response. Although there are published maps for many emerging zoonotic viruses, it is unknown if there is agreement among different models or if they are concordant with national expert opinion. Therefore, we reviewed existing predictions for five high priority emerging zoonotic viruses with national experts in Cameroon to investigate these issues and determine how to make predictions more useful for national policymakers. Predictive maps relied primarily on environmental parameters and species distribution models. Rift Valley fever virus and Crimean-Congo hemorrhagic fever virus predictions differed from national expert opinion, potentially because of local livestock movements. Our findings reveal that involving national experts could elicit additional data to improve predictions of emerging pathogens as well as help repackage predictions for policymakers.

Published
2018

23. Generating the evidence to support the establishment of a Respiratory Syncytial Virus surveillance system in Cameroon: A study protocol

Author

Njuma Libwea, John, primary, Esso, Linda, additional, Njoh, Andreas Ateke, additional, Ngwa, Che Henry, additional, Ngomba Armelle, Vivienne, additional, Bilounga Ndongo, Chanceline, additional, Etoundi Mballa, Georges Alain, additional, Nwaru, Bright I., additional, Weinberger, Dan, additional, Njouom, Richard, additional, and Koulla-Shiro, Sinata, additional

Published
2024
Full Text
View/download PDF

24. Partial spike gene sequencing for the identification of SARS-CoV-2 variants circulating in Cameroon in 2021

Author

Monamele, Chavely Gwladys, primary, Sadeuh-Mba, Serge Alain, additional, Ilouga, Pauliana Vanessa, additional, Moumbeket, Moïse Henri Y, additional, Messanga, Loique Landry E, additional, Mounchili Njifon, Aristide, additional, Madaha, Estelle L, additional, Njankouo, Ripa M, additional, Tagnouokam-Ngoupo, Paul Alain, additional, Tchatchueng, Jules Brice M, additional, Tejiokem, Mathurin Cyrille, additional, Perraut, Ronald, additional, Eyangoh, Sara, additional, and Njouom, Richard, additional

Published
2024
Full Text
View/download PDF

27. Performance and operational feasibility of antigen and antibody rapid diagnostic tests for COVID-19 in symptomatic and asymptomatic patients in Cameroon: a clinical, prospective, diagnostic accuracy study

Author

Boum, Yap, Fai, Karl Njuwa, Nikolay, Birgit, Mboringong, Akenji Blaise, Bebell, Lisa M, Ndifon, Mark, Abbah, Aristide, Essaka, Rachel, Eteki, Lucrèce, Luquero, Francisco, Langendorf, Céline, Mbarga, Nicole Fouda, Essomba, Rene Ghislain, Buri, Bongkiyung Donald, Corine, Tchoula Mamiafo, Kameni, Bertrand Tchualeu, Mandeng, Nadia, Fanne, Mahamat, Bisseck, Anne-Cécile Zoung-Kani, Ndongmo, Clement B, Eyangoh, Sara, Hamadou, Achta, Ouamba, Jean Patrick, Koku, Modeste Tamakloé, Njouom, Richard, Claire, Okomo Marie, Esso, Linda, Epée, Emilienne, and Mballa, Georges Alain Etoundi

Published
2021
Full Text
View/download PDF

28. Serologic response to SARS-CoV-2 in an African population

Author

Fai, Karl Njuwa, Corine, Tchoula Mamiafo, Bebell, Lisa M., Mboringong, Akenji Blaise, Nguimbis, E.B.P. Taa, Nsaibirni, Robert, Mbarga, Nicole Fouda, Eteki, Lucrece, Nikolay, Birgit, Essomba, Rene Ghislain, Ndifon, Mark, Ntone, Rodrigue, Hamadou, Achta, Matchim, Lucrece, Tchiasso, Dora, Abah Abah, Aristide S., Essaka, Rachel, Peppa, Solange, Crescence, Fouda, Ouamba, Jean Patrick, Koku, Modeste Tamakloé, Mandeng, Nadia, Fanne, Mahamat, Eyangoh, Sarah, Mballa, Georges Alain Etoundi, Esso, Linda, Epée, Emilienne, Njouom, Richard, Okomo Assoumou, Marie-Claire, and Boum, Yap

Published
2021
Full Text
View/download PDF

31. Impact of the 2022 African Cup of Nations mass-gathering event on the COVID-19 epidemic in Garoua, Cameroon.

Author

Berland, Jean-Luc, Njifon, Hermann, Westeel, Emilie, Moumbeket, Henri, Komurian-Pradel, Florence, Ilouga, Pauliana, Njouom, Richard, and Perraut, Ronald

Subjects
PANDEMIC preparedness, DESCRIPTIVE statistics, REVERSE transcriptase polymerase chain reaction, CROWDS, INTERNATIONAL relations, SPORTS events, MEDICAL screening, COVID-19 pandemic, COVID-19, SARS-CoV-2
Abstract

Background The 2022 African Cup of Nations (AFCON) took place in Cameroon from January 9th to February 5th, 2022, including Garoua in the north. We aimed to measure the impact of this event on the local COVID-19 epidemic given the implementation of a preventive strategy based on a health pass. Methods All players, staff and fans involved in the AFCON event were screened with PCR tests. Symptomatic cases were also continuously monitored in the general population and screened for variants of concern. Daily numbers of confirmed cases were compared to neighboring countries numbers retrieved from a public domain source. Results In total, 1479 and 2481 tests were performed in the general population and on asymptomatic AFCON attendees, respectively. From the latter, 12.5% were PCR-positive; 97% were infected with Omicron, with no significant difference compared to the passive program (G-test, P value = 0.162). Surveillance indicated the AFCON did not increase the number of symptomatic PCR-positive cases in the general population compared to neighboring countries. Conclusions Though the COVID-19 epidemic was fueled by asymptomatic cases infected with the Omicron variant at the time, the non-therapeutic preventive measures implemented for AFCON mitigated an increase in the epidemic in the local population. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

36. Ineffectiveness of international travel restrictions to contain spread of the SARS-CoV-2 Omicron BA.1 variant: a continent-wide laboratory-based observational study from Africa

Author

Fischer, Carlo, primary, Maponga, Tongai Gibson, additional, Yadouleton, Anges, additional, Abilio, Nuro, additional, Aboce, Emmanuel, additional, Adewumi, Praise, additional, Afonso, Pedro, additional, Akorli, Jewelna, additional, Andriamandimby, Soa Fy, additional, Anga, Latifa, additional, Ashong, Yvonne, additional, Beloufa, Mohamed Amine, additional, Bensalem, Aicha, additional, Birtles, Richard, additional, Magloire Boumba, Anicet Luc, additional, Bwanga, Freddie, additional, Chaponda, Mike, additional, Chibukira, Paradzai, additional, Chico, R Matthew, additional, Chileshe, Justin, additional, Choga, Wonderful, additional, Chongwe, Gershom, additional, Cisse, Assana, additional, Cisse, Fatoumata, additional, D Alessandro, Umberto, additional, de Lamballerie, Xavier, additional, de Morais, Joana F.M., additional, Derrar, Fawzi, additional, Dia, Ndongo, additional, Diarra, Youssouf, additional, Doumbia, Lassina, additional, Drosten, Christian, additional, Dussart, Philippe, additional, Echodu, Richard, additional, Luedde, Tom, additional, Eloualid, Abdelmajid, additional, Faye, Ousmane, additional, Feldt, Torsten, additional, Fruehauf, Anna, additional, Gaseitsiwe, Simani, additional, Halatoko, Afiwa, additional, Ilouga, Pauliana-Vanessa, additional, Ismael, Nalia, additional, Jambou, Ronan, additional, Jarju, Sheikh, additional, Kamprad, Antje, additional, Katowa, Ben, additional, Kayiwa, John, additional, Kingwara, Leonard, additional, Koita, Ousmane, additional, Lacoste, Vincent, additional, Lagare, Adamou, additional, Landt, Olfert, additional, Lekana-Douki, Sonia Etenna, additional, Lekana-Douki, Jean-Bernard, additional, Iipumbu, Etuhole, additional, Loemba, Hugues, additional, Lutwama, Julius, additional, Mamadou, Santou, additional, Maman, Issaka, additional, Manyisa, Brendon, additional, Martinez, Pedro A., additional, Matoba, Japhet, additional, Mhuulu, Lusia, additional, Moreira-Soto, Andres, additional, Moyo, Sikhulile, additional, Mwangi, Judy, additional, Ndilimabaka, Nadine, additional, Nassuna, Charity Angella, additional, Ndiath, Mamadou Ousmane, additional, Nepolo, Emmanuel, additional, Njouom, Richard, additional, Nourlil, Jalal, additional, Nyanjom, Steven Ger, additional, Odari, Eddy Okoth, additional, Okeng, Alfred, additional, Ouoba, Jean Bienvenue, additional, Owusu, Michael, additional, Donkor, Irene Owusu, additional, Phadu, Karabo Kristen, additional, Phillips, Richard Odame, additional, Preiser, Wolfgang, additional, Roques, Pierre, additional, Ruhanya, Vurayai, additional, Salah, Fortune, additional, Salifou, Sourakatou, additional, Sall, Amadou Alpha, additional, Sylverken, Augustina Angelina, additional, Tagnouokam-Ngoupo, Paul Alain, additional, Tarnagda, Zekiba, additional, Tchikaya, Francis Olivier, additional, Tordo, Noel, additional, Tufa, Tafese Beyene, additional, and Drexler, Jan Felix, additional

Published
2024
Full Text
View/download PDF

37. Occurrence of poliovirus and non-polio enterovirus among children with acute flaccid paralysis in Cameroon from 2015 to 2020

Author

Njile, Daniel K, primary, Sadeuh-Mba, Serge A, additional, Tabonfack Atemkeng, Michel, additional, Ahanda, Anicet, additional, Momo, Jean Blaise, additional, Pekekue Nforifum, Raissa, additional, Etéré, Ernestine, additional, Endegue-Zanga, Marie Claire, additional, Boyomo, Onana, additional, Djoumetio, Marlise D, additional, Anfumbom Kfutwah, Jude, additional, Diop, Ousmane M, additional, and Njouom, Richard, additional

Published
2024
Full Text
View/download PDF

38. Global epidemiology of hepatitis C virus in dialysis patients: A systematic review and meta-analysis

Author

Kenfack-Momo, Raoul, primary, Ngounoue, Marceline Djuidje, additional, Kenmoe, Sebastien, additional, Takuissu, Guy Roussel, additional, Ebogo-Belobo, Jean Thierry, additional, Kengne-Ndé, Cyprien, additional, Mbaga, Donatien Serge, additional, Zeuko’o Menkem, Elisabeth, additional, Lontuo Fogang, Robertine, additional, Tchatchouang, Serges, additional, Ndzie Ondigui, Juliette Laure, additional, Kame-Ngasse, Ginette Irma, additional, Kenfack-Zanguim, Josiane, additional, Magoudjou-Pekam, Jeannette Nina, additional, Bowo-Ngandji, Arnol, additional, Mahamat, Maimouna, additional, Nkie Esemu, Seraphine, additional, Ndip, Lucy, additional, and Njouom, Richard, additional

Published
2024
Full Text
View/download PDF

39. High seroprevalence of severe acute respiratory syndrome coronavirus 2 among healthcare workers in Yaoundé, Cameroon after the first wave of Covid‐19 pandemic and associated factors

Author

Tejiokem, Mathurin Cyrille, primary, Abessolo, Hermine Abessolo, additional, Nkodo, Joseph Mendimi, additional, Ouethy, Mireille, additional, Mayaka, Georges Bouting, additional, Touha, Yannick, additional, Dikoume, Ulrich Armel, additional, Tchatchueng‐Mbougua, Jules Brice, additional, Noumbissi, Diane Choualeu, additional, Ndjeukam, William Tsobeng, additional, Mbarga, Hervé Odilon Otabela, additional, Ngoupo, Paul Alain Tagnouokam, additional, Moussi, Charlotte, additional, Garoua, Bonaventure Hollong, additional, Njouom, Richard, additional, and Richard, Vincent, additional

Published
2024
Full Text
View/download PDF

45. Accelerating the elimination of viral hepatitis: a Lancet Gastroenterology & Hepatology Commission

Author

Abdo, Ayman, Aggarwal, Rakesh, Aghemo, Alessio, Al-Judaibi, Bandar, Al Mahtab, Mamun, Altaf, Arshad, Ameen, Zyaad, Asselah, Tarik, Baatarkkhuu, Oidov, Barber, Ella, Barnes, Eleanor, Boulet, Pascale, Burrows, Louise, Butsashvili, Maia, Chan, Erica, Chow, Chelsea, Cowie, Ben, Cunningham, Chris, de Araujo, Alexandre, Diap, Graciela, Dore, Greg, Doyle, Joseph, Elsayed, Manal, Fajardo, Emmanuel, Gane, Ed, Getahun, Aneley, Goldberg, David, Got, Tiffany, Hickman, Matthew, Hill, Andrew, Hutchinson, Sharon, Jones, Chris, Kamili, Saleem, Khan, Amreen, Lee, Alice, Lee, Tin Yan, Malani, Jioiji, Morris, Tammy Meyers, Nayagam, Shevanthi, Njouom, Richard, Ocama, Ponsiano, Pedrana, Alisa, Peeling, Rosanna, Reddy, Amulya, Sacks, Jilian, Sarin, Shiv, Shimakawa, Yusuke, Silva, Marcela, Skala, Pavlo, Taylor-Robinson, Simon, Thompson, Alex, Thursz, Mark, Tonganibeia, Alfred, Wallace, Jack, Ward, James, Wolff, Fernando, Vickerman, Peter, Yau, Johnny, Cooke, Graham S, Andrieux-Meyer, Isabelle, Applegate, Tanya L, Atun, Rifat, Burry, Jessica R, Cheinquer, Hugo, Dusheiko, Geoff, Feld, Jordan J, Gore, Charles, Griswold, Max G, Hamid, Saeed, Hellard, Margaret E, Hou, JinLin, Howell, Jess, Jia, Jidong, Kravchenko, Natalia, Lazarus, Jeffrey V, Lemoine, Maud, Lesi, Olufunmilayo A, Maistat, Liudmyla, McMahon, Brian J, Razavi, Homie, Roberts, Teri, Simmons, Bryony, Sonderup, Mark W, Spearman, C Wendy, Taylor, Bridie E, Thomas, David L, Waked, Imam, Ward, John W, and Wiktor, Stefan Z

Published
2019
Full Text
View/download PDF

47. Epidemiology of Rotavirus in Humans, Animals, and the Environment in Africa: A Systematic Review and Meta-analysis.

Author

Njifon, Hermann Landry Munshili, Kenmoe, Sebastien, Ahmed, Sharia M, Takuissu, Guy Roussel, Ebogo-Belobo, Jean Thierry, Njile, Daniel Kamga, Bowo-Ngandji, Arnol, Mbaga, Donatien Serge, Kengne-Nde, Cyprien, Mouiche, Mohamed Moctar Mouliom, Njouom, Richard, Perraut, Ronald, and Leung, Daniel T

Subjects
ROTAVIRUSES, ROTAVIRUS diseases, EPIDEMIOLOGY, INFECTIOUS disease transmission, DEATH rate, CHILD death, ECOLOGY
Abstract

Background Globally, rotavirus infections are the most common cause of diarrhea-related deaths, especially among children under 5 years of age. This virus can be transmitted through the fecal-oral route, although zoonotic and environmental contributions to transmission are poorly defined. The purpose of this study is to determine the epidemiology of rotavirus in humans, animals, and the environment in Africa, as well as the impact of vaccination. Methods We searched PubMed, Web of Science, Africa Index Medicus, and African Journal Online, identifying 240 prevalence data points from 224 articles between 2009 and 2022. Results Human rotavirus prevalence among patients with gastroenteritis was 29.8% (95% confidence interval [CI], 28.1%–31.5%; 238 710 participants), with similar estimates in children under 5 years of age, and an estimated case fatality rate of 1.2% (95% CI,.7%–2.0%; 10 440 participants). Prevalence was estimated to be 15.4% and 6.1% in patients with nongastroenteritis illnesses and apparently healthy individuals, respectively. Among animals, prevalence was 9.3% (95% CI, 5.7%–13.7%; 6115 animals), and in the environmental water sources, prevalence was 31.4% (95% CI, 17.7%–46.9%; 2530 samples). Discussion Our findings highlight the significant burden of rotavirus infection in Africa, and underscore the need for a One Health approach to limiting the spread of this disease. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

48. The Detection of Influenza Virus Before and During the COVID‐19 Pandemic in Cameroon.

Author

Monamele, Gwladys Chavely, Tsafack, Desmon Toutou, Bilounga, Chanceline Ndongo, Njankouo Ripa, Mohamadou, Nsangou Yogne, Christian, Munshili Njifon, Hermann Landry, Nkom, Felix, Tamoufe, Ubald, Esso, Linda, Koro Koro, Fancioli, Perraut, Ronald, and Njouom, Richard

Subjects
COVID-19, SARS-CoV-2, COVID-19 pandemic, INFLUENZA viruses, SEASONAL influenza
Abstract

Background: Influenza and severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) are both respiratory viruses with similar clinical manifestations and modes of transmission. This study describes influenza data before and during the coronavirus disease pandemic (COVID‐19) in Cameroon and SARS‐CoV‐2 data during the pandemic period. Methods: The study ran from 2017 to 2022, and data were divided into two periods: before (2017–2019) and during (2020–2022) the COVID‐19 pandemic. Nasopharyngeal samples collected from persons with respiratory illness were tested for influenza using the Centers for Disease Control and Prevention (CDC) typing and subtyping assays. During the COVID‐19 pandemic, the respiratory specimens were simultaneously tested for SARS‐CoV‐2 using the DaAn gene protocol or the Abbott real‐time SARS‐CoV‐2 assay. The WHO average curve method was used to compare influenza virus seasonality before and during the pandemic. Results: A total of 6246 samples were tested. Influenza virus detection rates were significantly higher in the pre‐pandemic period compared to the pandemic period (30.8% vs. 15.5%; p < 0.001). Meanwhile, the SARS‐CoV‐2 detection rate was 2.5%. A change in the seasonality of influenza viruses was observed from a bi‐annual peak before the pandemic to no clear seasonal pattern during the pandemic. The age groups 2–4 and 5–14 years were significantly associated with higher influenza positivity rates in both pre‐pandemic and pandemic periods. For SARS‐CoV‐2, all age groups above 15 years were the most affected population. Conclusion: The COVID‐19 pandemic had a significant impact on the seasonal influenza by changing the seasonality of the virus and reducing its detection rates. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

50. Systematic review and meta-analysis of seroprevalence of human immunodeficiency virus serological markers among pregnant women in Africa, 1984-2020

Author

Ebogo-Belobo, Jean Thierry, primary, Kenmoe, Sebastien, additional, Mbongue Mikangue, Chris Andre, additional, Tchatchouang, Serges, additional, Robertine, Lontuo-Fogang, additional, Takuissu, Guy Roussel, additional, Ndzie Ondigui, Juliette Laure, additional, Bowo-Ngandji, Arnol, additional, Kenfack-Momo, Raoul, additional, Kengne-Ndé, Cyprien, additional, Mbaga, Donatien Serge, additional, Menkem, Elisabeth Zeuko'o, additional, Kame-Ngasse, Ginette Irma, additional, Magoudjou-Pekam, Jeannette Nina, additional, Kenfack-Zanguim, Josiane, additional, Esemu, Seraphine Nkie, additional, Tagnouokam-Ngoupo, Paul Alain, additional, Ndip, Lucy, additional, and Njouom, Richard, additional

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results