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2. Incidence of typhoid fever in Burkina Faso, Democratic Republic of the Congo, Ethiopia, Ghana, Madagascar, and Nigeria (the Severe Typhoid in Africa programme): a population-based study

Author

Marks, Florian, Im, Justin, Park, Se Eun, Pak, Gi Deok, Jeon, Hyon Jin, Wandji Nana, Lady Rosny, Phoba, Marie-France, Mbuyi-Kalonji, Lisette, Mogeni, Ondari D, Yeshitela, Biruk, Panzner, Ursula, Cruz Espinoza, Ligia María, Beyene, Tigist, Owusu-Ansah, Michael, Twumasi-Ankrah, Sampson, Yeshambaw, Melese, Alemu, Ashenafi, Adewusi, Oluwafemi J, Adekanmbi, Olukemi, Higginson, Ellen, Adepoju, Akinlolu, Agbi, Sarah, Cakpo, Enoch G, Ogunleye, Veronica O, Tunda, Gaëlle Nkoji, Ikhimiukor, Odion O, Mbuyamba, Jules, Toy, Trevor, Agyapong, Francis Opoku, Osei, Isaac, Amuasi, John, Razafindrabe, Tsiriniaina Jean Luco, Raminosoa, Tiana Mirana, Nyirenda, Gabriel, Randriamampionona, Njariharinjakampionona, Seo, Hyeong Won, Seo, Hyejin, Siribie, Mohamadou, Carey, Megan E, Owusu, Michael, Meyer, Christian G, Rakotozandrindrainy, Ndrainaharimira, Sarpong, Nimarko, Razafindrakalia, Mathilde, Razafimanantsoa, Ravomialisoa, Ouedraogo, Moussa, Kim, Yeonseon J, Lee, Jooah, Zellweger, Raphaël M, Kang, Sophie S Y, Park, Ju Yeon, Crump, John A, Hardy, Liselotte, Jacobs, Jan, Garrett, Denise O, Andrews, Jason R, Poudyal, Nimesh, Kim, Deok Ryun, Clemens, John D, Baker, Stephen G, Kim, Jerome H, Dougan, Gordon, Sugimoto, Jonathan D, Van Puyvelde, Sandra, Kehinde, Aderemi, Popoola, Oluwafemi A, Mogasale, Vittal, Breiman, Robert F, MacWright, William R, Aseffa, Abraham, Tadesse, Birkneh Tilahun, Haselbeck, Andrea, Adu-Sarkodie, Yaw, Teferi, Mekonnen, Bassiahi, Abdramane Soura, Okeke, Iruka N, Lunguya-Metila, Octavie, Owusu-Dabo, Ellis, and Rakotozandrindrainy, Raphaël

Published
2024
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3. High levels of used syringe use and unsafe sex among people who inject drugs in Kumasi, Ghana: an urgent call for a comprehensive harm reduction approach

Author

Messersmith, Lisa J, Adjei, Rose, Beard, Jennifer, Bazzi, Angela R, Earlywine, Joel J, Darko, Edwin, Agyarko-Poku, Thomas, Asafo, Mabel Kissiwah, Bempah, Sherry Adoma, and Adu-Sarkodie, Yaw

Subjects
Public Health, Health Sciences, Hepatitis, Drug Abuse (NIDA only), Substance Misuse, HIV/AIDS, Prevention, Clinical Research, Infectious Diseases, Behavioral and Social Science, Liver Disease, Emerging Infectious Diseases, Digestive Diseases, Development of treatments and therapeutic interventions, Prevention of disease and conditions, and promotion of well-being, 5.1 Pharmaceuticals, 3.1 Primary prevention interventions to modify behaviours or promote wellbeing, Infection, Good Health and Well Being, Female, Ghana, HIV Infections, Harm Reduction, Homosexuality, Male, Humans, Male, Needle Sharing, Pharmaceutical Preparations, Risk-Taking, Sexual and Gender Minorities, Substance Abuse, Intravenous, Syringes, Unsafe Sex, HIV, Injecting drug use, Needle sharing, Unsafe sex, Harm reduction, Public Health and Health Services, Substance Abuse, Health services and systems, Public health
Abstract

BackgroundDrug use is a growing concern in Ghana. People who inject drugs (PWID) are highly vulnerable to HIV and other infectious diseases. Ghana's National Strategic Plan for HIV/AIDS 2016-2020 identifies PWID as a key population, but efforts to address the needs of PWID have lagged behind those targeting sex workers and men who have sex with men. Lack of information about PWID is a critical barrier to implementing effective HIV prevention and treatment. We aimed to learn more about the vulnerability of the PWID population in order to inform much-needed harm reduction interventions.MethodsFrom April to July 2018, we conducted a mixed methods study in Kumasi, Ghana, to identify all major drug using locations, count the numbers of PWID to obtain rough population size estimations, and administer anonymous surveys to 221 PWID regarding drug use and sexual behavior. We also tested for HIV, HCV, and HBV from syringes used by survey participants.ResultsKey informants identified five major drug using locations and estimated the total PWID population size to be between 600 and 2000. Enumerators counted between 35 and 61 individuals present at each of the five bases. Sharing syringes and reusing discarded syringes are common practices. Over half of survey participants (59%) reported past-month syringe sharing (34% used a used syringe and 52% gave away a used syringe). Individuals with higher injection frequency (≥ 21 times weekly) and who injected with four or more people had higher odds of syringe sharing. Of the survey participants reporting sex in the last month (23%), most reported having one partner, but only 12% used condoms. Nearly all women (11/13) reported exchanging sex for drugs and 6/13 reported exchanging sex for money in the last six months. Fifteen percent of participants (all men) reported paying for sex using drugs or money. Of the used syringes, prevalence estimates were 3% (HIV), 2% (HCV), and 9% (HBV).ConclusionsOur findings confirm the urgent need to implement harm reduction interventions targeting PWID and to build a strong and enabling legal and policy environment in Ghana to support these efforts.

Published
2021

5. Melioidosis in Africa: Time to uncover the true disease load

Author

Steinmetz, Ivo, Wagner, Gabriel E, Kanyala, Estelle, Sawadogo, Mamadou, Soumeya, Hema, Teferi, Mekonnen, Andargie, Emawayish, Yeshitela, Biruk, Atse-Achi, Louise Yaba, Sanogo, Moussa, Bonfoh, Bassirou, Rakotozandrindrainy, Raphael, Shongo, Celestin Pongombo, Pongombo, Mick Shongoya, Ilunga, Eric Kasamba, Lichtenegger, Sabine, Assig, Karoline, May, Jurgen, Bertherat, Eric, Owusu, Michael, Owusu-Dabo, Ellis, and Adu-Sarkodie, Yaw

Published
2018

7. Surveillance and laboratory collaboration in response to an outbreak of Vibrio parahaemolyticus, Plesiomonas shigelloides, and Aeromonas hydrophila in Sekondi-Takoradi, Ghana: a case series

Author

Owusu, Michael, Nkrumah, Bernard, Mensah, Ebenezer Kofi, Lamptey, Jones, Acheampong, Godfred, Sambian, David, Sylverken, Augustina, Emery, Shannon, Robinson, Lucy Maryogo, Sefa, Solomon Asante, Amoako, Eric, Amedzro, Irene, Chinbuah, Slyvester, Asante, Kwame, Adu-Sarkodie, Yaw, and Opare, David

Published
2022
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8. Transmission of SARS-CoV-2 in northern Ghana: insights from whole-genome sequencing

Author

Sylverken, Augustina Angelina, El-Duah, Philip, Owusu, Michael, Schneider, Julia, Yeboah, Richmond, Ayisi-Boateng, Nana Kwame, Gorman, Richmond, Adu, Eric, Kwarteng, Alexander, Frimpong, Michael, Binger, Tabea, Aryeetey, Sherihane, Asamoah, Jesse Addo, Amoako, Yaw Ampem, Amuasi, John Humphrey, Beheim-Schwarzbach, Jörn, Owusu-Dabo, Ellis, Adu-Sarkodie, Yaw, Obiri-Danso, Kwasi, Corman, Victor Max, Drosten, Christian, and Phillips, Richard

Published
2021
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12. PA-401 Demographic surveillance in low-resource settings during COVID-19: lessons learnt from the typhoid cluster randomised trial in Ghana

Author

Twumasi-Ankrah, Sampson, primary, Owusu-Ansah, Michael, additional, Owusu, Michael, additional, Arko-Adjei, Anthony, additional, Okyere-Boakye, Portia, additional, Amenyaglo, Seidu, additional, Osei-Wusu, Caleb, additional, Opoku-Agyapong, Francis, additional, Tadesse, Birkneh Tilahun, additional, Marks, Florian, additional, Adu-Sarkodie, Yaw, additional, and Owusu-Dabo, Ellis, additional

Published
2023
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13. Determining the Best Immunization Strategy for Protecting African Children Against Invasive Salmonella Disease

Author

Jeon, Hyon Jin, Pak, Gi Deok, Im, Justin, Owusu-Dabo, Ellis, Adu-Sarkodie, Yaw, Sow, Amy Gassama, Soura, Abdramane Bassiahi, Gasmelseed, Nagla, Keddy, Karen H., Bjerregaard-Andersen, Morten, Konings, Frank, Aseffa, Abraham, Crump, John A., Chon, Yun, Breiman, Robert F., Park, Se Eun, Espinoza, Ligia Maria Cruz, Seo, Hye Jin, May, Jürgen, Meyer, Christian G., Andrews, Jason R., Panzner, Ursula, von Kalckreuth, Vera, Wierzba, Thomas F., Rakotozandrindrainy, Raphaël, Dougan, Gordon, Levine, Myron M., Hombach, Joachim, Kim, Jerome H., Clemens, John D., Baker, Stephen, and Marks, Florian

Published
2018

15. Multiplex Mediator Displacement Loop-Mediated Isothermal Amplification for Detection of Treponema pallidum and Haemophilus ducreyi

Author

Becherer, Lisa, Knauf, Sascha, Marks, Michael, Lueert, Simone, Frischmann, Sieghard, Borst, Nadine, von Stetten, Felix, Bieb, Sibauk, Adu-Sarkodie, Yaw, Asiedu, Kingsley, Mitja, Oriol, and Bakheit, Mohammed

Subjects
Disease eradication -- Comparative analysis -- Health aspects, Infection -- Comparative analysis -- Health aspects, Skin -- Comparative analysis -- Health aspects, Hemophilus infections -- Comparative analysis -- Health aspects, DNA, Genetic research, Polymerase chain reaction, Medical tests, Diseases, Novels, Health, World Health Organization -- Negotiation, mediation and arbitration
Abstract

Yaws, a neglected tropical disease caused by the bacterium Treponema pallidum subspecies pertenue, predominantly affects children living in low-income, rural communities of warm and humid regions (1). Clinical manifestations include [...]

Published
2020
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16. Aetiological agents of pneumonia among HIV and non-HIV infected children in Ghana: A case-control study.

Author

Owusu, Michael, Adu, Eric, Kalu, Lotenna Elsie, Martey, Eugene, Acheampong, Godfred, Enimil, Anthony, Appiah, John Adabie, Badu-Peprah, Augustina, Sylverken, Justice, Sylverken, Augustina Angelina, Nguah, Samuel Blay, Westeel, Emilie, Pouzol, Stephane, Drosten, Christian, and Adu-Sarkodie, Yaw

Abstract

Pneumonia is the leading cause of death in children, however, the microbial aetiology of pneumonia is not well elucidated in low- and middle-income countries. Our study was aimed at determining the microbial aetiologies of childhood pneumonia and associated risk factors in HIV and non-HIV infected children. We conducted a case-control study that enrolled children with pneumonia as cases and non-pneumonia as controls from July 2017 to May 2020. Induced sputum and blood samples were investigated for microbial organisms using standard microbiological techniques. DNA/RNA was extracted from sputum samples and tested for viral and bacterial agents. Four hundred and four (404) subjects consisting of 231 (57.2%) cases and 173 (42.8%) controls were enrolled. We identified a significant (p = 0.011) proportion of viruses in cases (125; 54.1%, 95%CI: 47.4–60.7) than controls (71; 33.6%, 95%CI: 33.6–48.8) and these were mostly contributed to by Respiratory Syncytial Virus. Staphylococcus aureus (16; 4.0%), Klebsiella spp. (15, 3.7%) and Streptococcus pneumoniae (8, 2.0%) were the main bacterial agents identified in sputum or induced sputum samples. HIV infected children with viral-bacterial co-detection were found to have very severe pneumonia compared to those with only viral or bacterial infection. Indoor cooking (OR = 2.36; 95%CI:1.41–3.96) was found to be associated with pneumonia risk in patients. This study demonstrates the importance of various microbial pathogens, particularly RSV, in contributing to pneumonia in HIV and non-HIV paediatric populations. There is a need to accelerate clinical trials of RSV vaccines in African populations to support improvement of patient care. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Fever in focus: Symptoms, diagnoses and treatment of febrile children in Ghana—A longitudinal hospital study.

Author

Rautman, Lydia Helen, Maiga‐Ascofaré, Oumou, Eibach, Daniel, Hogan, Benedikt, Dekker, Denise, Jaeger, Anna, Akenten, Charity Wiafe, Owusu‐Dabo, Ellis, Boateng, Felix Osei, Hanson, Henry, Boahen, Kennedy Gyau, Sarpong, Nimako, Adu‐Sarkodie, Yaw, Kreuels, Benno, May, Jürgen, and Krumkamp, Ralf

Subjects
DELAYED diagnosis, DIAGNOSIS, SYMPTOMS, RURAL children, LONGITUDINAL method
Abstract

Background: Healthcare resources are often limited in areas of sub‐Saharan Africa. This makes accurate and timely diagnoses challenging and delays treatment of childhood febrile illness. We explored longitudinal characteristics related to symptoms, diagnosis and treatment of hospitalised febrile children in a rural area of Ghana highly endemic for malaria. Methods: Febrile children under 15 years, admitted to the study hospital paediatric ward, were recruited to the study and clinical data were collected throughout hospitalisation. Descriptive statistics were reported for all cases; for longitudinal analyses, a subset of visits with limited missing data was used. Results: There were 801 hospitalised children included in longitudinal analyses. Malaria (n = 581, 73%) and sepsis (n = 373, 47%) were the most prevalent suspected diagnoses on admission. One‐third of malaria suspected diagnoses (n = 192, 33%) were changed on the discharge diagnosis, compared to 84% (n = 315) of sepsis suspected diagnoses. Among malaria‐only discharge diagnoses, 98% (n/N = 202/207) received an antimalarial and 33% (n/N = 69/207) an antibiotic; among discharge diagnoses without malaria, 28% (n/N = 108/389) received an antimalarial and 83% (n/N = 324/389) an antibiotic. Conclusions: Suspected diagnoses were largely based on clinical presentation and were frequently changed; changed diagnoses were associated with lingering symptoms, underscoring the need for faster and more accurate diagnostics. Medications were over‐prescribed regardless of diagnosis stability, possibly because of a lack of confidence in suspected diagnoses. Thus, better diagnostic tools are needed for childhood febrile illnesses to enhance the accuracy of and confidence in diagnoses, and to cut down unjustified medication use, reducing the risk of antimicrobial and malaria resistance. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Comparative efficacy of low-dose versus standard-dose azithromycin for patients with yaws: a randomised non-inferiority trial in Ghana and Papua New Guinea

Author

Marks, Michael, Mitjà, Oriol, Bottomley, Christian, Kwakye, Cynthia, Hounei, Wendy, Bauri, Mathias, Adwere, Paul, Abdulai, Abdul A, Dua, Fredrick, Boateng, Laud, Wangi, James, Ohene, Sayy-Ann, Wangnapi, Regina, Simpson, Shirley V, Miag, Helen, Addo, Kennedy K, Basing, Laud A, Danavall, Damien, Chi, Kai H, Pillay, Allan, Ballard, Ronald, Solomon, Anthony W, Chen, Cheng Y, Bieb, Sivuak V, Adu-Sarkodie, Yaw, Mabey, David CW, Asiedu, Kingsley, Agana, Nsire, Ampadu, Edwin, Amponsah-Achiano, Kwame, Bediako, Asare, Biredu, Michael, Faried, Kyei, Iddrisu, Ahmed, Kotey, Nana K, Yeboah, George NY, El-Duah, Philip, Phillips, Richard, Binka, Fred, Nyonator, Frank, Zunuo, Anthony, Ackumey, Mercy A, Amanor, Ivy, Bnosu, Christian, Frischmann, Sieghard, Lammie, Patrick, Martin, Diana, Ye, Tun, Christophel, Eva, Tiendrebeogo, Alexandre, Vestergard, Lasse, Bassat, Quique, Abdad, Yazid, Dima, Henson, Kotty, Bethuel, Mamore, Kaiok, Manup, Walerius, Olowau, Benson, Agyei, Enoch O, Agyemang, David, Ako, Ebenezer P, Antwi, Prince, Darko, Jane, Darko, Ophelia O, Darko, Phylis, Duodu, Bertha, Jabasi, Daniel, Karim, Fuseini L, Koomson, Obed K, Labri, Bernard A, Nartey, John, Tamatey, Randsford, Yirenkyi, Benjamin, Arhin, Mercy, Biney, Frank, Danso, Juliana O, Dei, Martin A, Djan, Moses, Sasu, Samuel, Solomon, Brefo A, Torvinya, Victor, Amankwaah, Hagar, Baffoe, James, Keteku, Lydia, Kondobala, Kofi, Lomotey, Rita D, Nartey, Augustina A, Oppong, Paul, Quainoo, Millicent A, Abotsi, Theophilus, Agebshie, Dzighordi, Ameamu, Amos, Angwaawie, Paul, Ayibor, Rose, Mwingmendeli, Margaret, Nakodia, John, Nambagyira, Amatus, Nanga, Dominic, Tetteh, Nichola, Wanaom, Augustine, Houinei, Wendy, Ohene, Sally-Ann, Bieb, Sibauk V, and Mabey, David C W

Published
2018
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20. Epidemiology of trichomoniasis in Kumasi, Ghana

Author

Adu-Sarkodie, Yaw Amankwaa

Subjects
614.599215
Abstract

Estimates from the WHO indicate that Trichomonas vaginalis (TV) infection is the most common curable sexually transmitted infection world wide. Unfortunately compared to other curable sexually transmitted infections, not much attention has been given to its control. This, however, is changing due to recent reports linking Trichomonas vaginalis infection to adverse birth and reproductive health outcomes and also its facilitation of acquisition of the Human immuno deficiency virus. Studies in this thesis address aspects of the epidemiology of Trichomonas vaginalis infection with a view to enhancing control programmes. Pregnant women attending antenatal clinics in Kumasi, Ghana, participated in the study. Data on socio-demographic characteristics, sexual behaviour, ano-genital hygiene, and partner behaviour were taken. Genital examinations were also done. Vaginal swabs were taken for the detection of Trichomonas vaginalis by 6 methods; latex agglutination, wet prep microscopy, culture, enzyme immuno-assay, polymerase chain reaction, and lateral flow. Women infected with TV were treated with standard 2g metronidazole single dose and had tests of cure done after a week. Four main findings are highlighted; socio-demographic, behavioural and clinical factors independently associated with TV infection were; young age, neither being of Akan nor northern origin, having no religious faith, and douching. Also, not using toilet roll for menstrual hygiene, complaining of a vaginal discharge, clinical detection of vaginal discharge and a vaginal pH more than 5 were independently associated with infection. However, these factors either singly or in combination, could not predict TV infection. using a combination of morphologically based traditional TV diagnostics (wet prep and culture) and molecular techniques (PCR), no evidence for the involvement of rectal and oral trichomonads in the aetiology of vaginal trichomoniasis as speculated recently, was found. iii. a developing country- friendly TV diagnostic, the latex agglutination test, compared favourably with culture, the gold standard in TV diagnosis. With 91% sensitivity and 99% specificity, it is easy to train to use, easy to use, enables same day treatment, and does not require any equipment. It is apparently stable in field temperatures and relatively cheap. iv. the use of 2g single dose metronidazole therapy by a directly observed strategy is feasible. It was well tolerated and had a cure rate of 99.4% after I week. These findings contribute some new information to the epidemiology of TV infection. Such attributes of the latex agglutination test and the excellent clinical efficacy of single dose metronidazole therapy should make the control of TV infection feasible.

Published
2005
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21. Incidence of invasive salmonella disease in sub-Saharan Africa: a multicentre population-based surveillance study

Author

Marks, Florian, von Kalckreuth, Vera, Aaby, Peter, Adu-Sarkodie, Yaw, El Tayeb, Muna Ahmed, Ali, Mohammad, Aseffa, Abraham, Baker, Stephen, Biggs, Holly M, Bjerregaard-Andersen, Morten, Breiman, Robert F, Campbell, James I, Cosmas, Leonard, Crump, John A, Espinoza, Ligia Maria Cruz, Deerin, Jessica Fung, Dekker, Denise Myriam, Fields, Barry S, Gasmelseed, Nagla, Hertz, Julian T, Van Minh Hoang, Nguyen, Im, Justin, Jaeger, Anna, Jeon, Hyon Jin, Kabore, Leon Parfait, Keddy, Karen H, Konings, Frank, Krumkamp, Ralf, Ley, Benedikt, Løfberg, Sandra Valborg, May, Jürgen, Meyer, Christian G, Mintz, Eric D, Montgomery, Joel M, Niang, Aissatou Ahmet, Nichols, Chelsea, Olack, Beatrice, Pak, Gi Deok, Panzner, Ursula, Park, Jin Kyung, Park, Se Eun, Rabezanahary, Henintsoa, Rakotozandrindrainy, Raphaël, Raminosoa, Tiana Mirana, Razafindrabe, Tsiriniaina Jean Luco, Sampo, Emmanuel, Schütt-Gerowitt, Heidi, Sow, Amy Gassama, Sarpong, Nimako, Seo, Hye Jin, Sooka, Arvinda, Soura, Abdramane Bassiahi, Tall, Adama, Teferi, Mekonnen, Thriemer, Kamala, Warren, Michelle R, Yeshitela, Biruk, Clemens, John D, and Wierzba, Thomas F

Published
2017
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25. Characterization of Typhoid Intestinal Perforation in Africa: Results From the Severe Typhoid Fever Surveillance in Africa Program

Author

Birkhold, Megan, primary, Datta, Shrimati, additional, Pak, Gi Deok, additional, Im, Justin, additional, Ogundoyin, Olakayode O, additional, Olulana, Dare I, additional, Lawal, Taiwo A, additional, Afuwape, Oludolapo O, additional, Kehinde, Aderemi, additional, Phoba, Marie-France, additional, Nkoji, Gaëlle, additional, Aseffa, Abraham, additional, Teferi, Mekonnen, additional, Yeshitela, Biruk, additional, Popoola, Oluwafemi, additional, Owusu, Michael, additional, Nana, Lady Rosny Wandji, additional, Cakpo, Enoch G, additional, Ouedraogo, Moussa, additional, Ouangre, Edgar, additional, Ouedraogo, Isso, additional, Heroes, Anne-Sophie, additional, Jacobs, Jan, additional, Mogeni, Ondari D, additional, Haselbeck, Andrea, additional, Sukri, Leah, additional, Neuzil, Kathleen M, additional, Metila, Octavie Lunguya, additional, Owusu-Dabo, Ellis, additional, Adu-Sarkodie, Yaw, additional, Bassiahi, Abdramane Soura, additional, Rakotozandrindrainy, Raphaël, additional, Okeke, Iruka N, additional, Zellweger, Raphaël M, additional, and Marks, Florian, additional

Published
2023
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28. The Typhoid Fever Surveillance in Africa Program (TSAP): Clinical, Diagnostic, and Epidemiological Methodologies

Author

von Kalckreuth, Vera, Konings, Frank, Aaby, Peter, Adu-Sarkodie, Yaw, Ali, Mohammad, Aseffa, Abraham, Baker, Stephen, Breiman, Robert F., Bjerregaard-Andersen, Morten, Clemens, John D., Crump, John A., Espinoza, Ligia Maria Cruz, Deerin, Jessica Fung, Gasmelseed, Nagla, Sow, Amy Gassama, Im, Justin, Keddy, Karen H., Cosmas, Leonard, May, Jürgen, Meyer, Christian G., Mintz, Eric D., Montgomery, Joel M., Olack, Beatrice, Pak, Gi Deok, Panzner, Ursula, Park, Se Eun, Rakotozandrindrainy, Raphaël, Schütt-Gerowitt, Heidi, Soura, Abdramane Bassiahi, Warren, Michelle R., Wierzba, Thomas F., and Marks, Florian

Published
2016

29. Utilization of Healthcare in the Typhoid Fever Surveillance in Africa Program

Author

Panzner, Ursula, Pak, Gi Deok, Aaby, Peter, Adu-Sarkodie, Yaw, Ali, Mohammad, Aseffa, Abraham, Baker, Stephen, Bjerregaard-Andersen, Morten, Crump, John A., Deerin, Jessica, Espinoza, Ligia Maria Cruz, Gasmelseed, Nagla, Heriniaina, Jean Noël, Hertz, Julian T., Im, Justin, von Kalckreuth, Vera, Keddy, Karen H., Lankoande, Bruno, Løfberg, Sandra, Meyer, Christian G., Oresto, Michael Munishi, Park, Jin Kyung, Park, Se Eun, Rakotozandrindrainy, Raphaël, Sarpong, Nimako, Soura, Abdramane Bassiahi, Sow, Amy Gassama, Tall, Adama, Teferi, Mekonnen, Worku, Alemayehu, Yeshitela, Biruk, Wierzba, Thomas F., and Marks, Florian

Published
2016

30. Validation and Identification of Invasive Salmonella Serotypes in Sub-Saharan Africa by Multiplex Polymerase Chain Reaction

Author

Al-Emran, Hassan M., Krumkamp, Ralf, Dekker, Denise Myriam, Eibach, Daniel, Aaby, Peter, Adu-Sarkodie, Yaw, Ali, Mohammad, Rubach, Mathew P., Bjerregaard-Andersen, Morten, Crump, John A., Espinoza, Ligia Maria Cruz, Lefberg, Sandra Valborg, Sow, Amy Gassama, Hertz, Julian T., Im, Justin, Jaeger, Anna, Kabore, Leon Parfait, Konings, Frank, Meyer, Christian G., Niang, Aissatou, Pak, Gi Deok, Panzner, Ursula, Park, Se Eun, Rabezanahary, Henintsoa, Rakotozandrindrainy, Raphaël, Raminosoa, Tiana Mirana, Razafindrabe, Tsiriniaina Jean Luco, Sampo, Emmanuel, Schütt-Gerowitt, Heidi, Sarpong, Nimako, Soura, Abdramane Bassiahi, Tall, Adama, von Kalckreuth, Vera, Wierzba, Thomas F., May, Jürgen, and Marks, Florian

Published
2016

31. The Relationship Between Invasive Nontyphoidal Salmonella Disease, Other Bacterial Bloodstream Infections, and Malaria in Sub-Saharan Africa

Author

Park, Se Eun, Pak, Gi Deok, Aaby, Peter, Adu-Sarkodie, Yaw, Ali, Mohammad, Aseffa, Abraham, Biggs, Holly M., Bjerregaard-Andersen, Morten, Breiman, Robert F., Crump, John A., Espinoza, Ligia Maria Cruz, Eltayeb, Muna Ahmed, Gasmelseed, Nagla, Hertz, Julian T., Im, Justin, Jaeger, Anna, Kabore, Leon Parfait, von Kalckreuth, Vera, Keddy, Karen H., Konings, Frank, Krumkamp, Ralf, MacLennan, Calman A., Meyer, Christian G., Montgomery, Joel M., Niang, Aissatou Ahmet, Nichols, Chelsea, Olack, Beatrice, Panzner, Ursula, Park, Jin Kyung, Rabezanahary, Henintsoa, Rakotozandrindrainy, Raphaël, Sampo, Emmanuel, Schütt-Gerowitt, Heidi, Sooka, Arvinda, Soura, Abdramane Bassiahi, Sow, Amy Gassama, Tall, Adama, Teferi, Mekonnen, Yeshitela, Biruk, May, Jürgen, Wierzba, Thomas F., Clemens, John D., Baker, Stephen, and Marks, Florian

Published
2016

32. The Emergence of Reduced Ciprofloxacin Susceptibility in Salmonella enterica Causing Bloodstream Infections in Rural Ghana

Author

Eibach, Daniel, Al-Emran, Hassan M., Dekker, Denise Myriam, Krumkamp, Ralf, Adu-Sarkodie, Yaw, Espinoza, Ligia Maria Cruz, Ehmen, Christa, Boahen, Kennedy, Heisig, Peter, Im, Justin, Jaeger, Anna, von Kalckreuth, Vera, Pak, Gi Deok, Panzner, Ursula, Park, Se Eun, Reinhardt, Alexander, Sarpong, Nimako, Schütt-Gerowitt, Heidi, Wierzba, Thomas F., Marks, Florian, and May, Jürgen

Published
2016

33. Variations of Invasive Salmonella Infections by Population Size in Asante Akim North Municipal, Ghana

Author

Espinoza, Ligia M., Nichols, Chelsea, Adu-Sarkodie, Yaw, Al-Emran, Hassan M., Baker, Stephen, Clemens, John D., Dekker, Denise Myriam, Eibach, Daniel, Krumkamp, Ralf, Boahen, Kennedy, Im, Justin, Jaeger, Anna, von Kalckreuth, Vera, Pak, Gi Deok, Panzner, Ursula, Park, Se Eun, Park, Jin Kyung, Sarpong, Nimako, Schütt-Gerowitt, Heidi, Toy, Trevor, Wierzba, Thomas F., Marks, Florian, and May, Jürgen

Published
2016

35. Characterization of Typhoid Intestinal Perforation in Africa: Results From the Severe Typhoid Fever Surveillance in Africa Program

Author

Birkhold, Megan, Datta, Shrimati, Pak, Gi Deok, Im, Justin, Ogundoyin, Olakayode O, Olulana, Dare I, Lawal, Taiwo A, Afuwape, Oludolapo O, Kehinde, Aderemi, Phoba, Marie-France, Nkoji, Gaëlle, Aseffa, Abraham, Teferi, Mekonnen, Yeshitela, Biruk, Popoola, Oluwafemi, Owusu, Michael, Nana, Lady Rosny Wandji, Cakpo, Enoch G, Ouedraogo, Moussa, Ouangre, Edgar, Ouedraogo, Isso, Heroes, Anne-Sophie, Jacobs, Jan, Mogeni, Ondari D, Haselbeck, Andrea, Sukri, Leah, Neuzil, Kathleen M, Metila, Octavie Lunguya, Owusu-Dabo, Ellis, Adu-Sarkodie, Yaw, Bassiahi, Abdramane Soura, Rakotozandrindrainy, Raphaël, Okeke, Iruka N, Zellweger, Raphaël M, Marks, Florian, Birkhold, Megan [0000-0002-5746-1321], Im, Justin [0000-0002-3762-084X], Okeke, Iruka N [0000-0002-1694-7587], Marks, Florian [0000-0002-6043-7170], and Apollo - University of Cambridge Repository

Subjects
intestinal perforation, Africa, Salmonella Typhi, severe typhoid, typhoid fever
Abstract

BACKGROUND: Typhoid intestinal perforation (TIP) remains the most serious complication of typhoid fever. In many countries, the diagnosis of TIP relies on intraoperative identification, as blood culture and pathology capacity remain limited. As a result, many cases of TIP may not be reported as typhoid. This study demonstrates the burden of TIP in sites in Burkina Faso, Democratic Republic of Congo (DRC), Ethiopia, Ghana, Madagascar, and Nigeria. METHODS: Patients with clinical suspicion of nontraumatic intestinal perforation were enrolled and demographic details, clinical findings, surgical records, blood cultures, tissue biopsies, and peritoneal fluid were collected. Participants were then classified as having confirmed TIP, probable TIP, possible TIP, or clinical intestinal perforation based on surgical descriptions and cultures. RESULTS: A total of 608 participants were investigated for nontraumatic intestinal perforation; 214 (35%) participants had surgically-confirmed TIP and 33 participants (5%) had culture-confirmed typhoid. The overall proportion of blood or surgical site Salmonella enterica subspecies enterica serovar Typhi positivity in surgically verified TIP cases was 10.3%. TIP was high in children aged 5-14 years in DRC, Ghana, and Nigeria. We provide evidence for correlation between monthly case counts of S. Typhi and the occurrence of intestinal perforation. CONCLUSIONS: Low S. Typhi culture positivity rates, as well as a lack of blood and tissue culture capability in many regions where typhoid remains endemic, significantly underestimate the true burden of typhoid fever. The occurrence of TIP may indicate underlying typhoid burden, particularly in countries with limited culture capability.

Published
2023

37. Ralstonia mannitolilytica sepsis: a case report

Author

Owusu, Michael, Acheampong, Godfred, Annan, Augustina, Marfo, Kwadwo Sarfo, Osei, Isaac, Amuasi, John, Sarpong, Nimako, Im, Justin, Mogeni, Ondari D., Chiang, Hsin-Ying, Kuo, Chih-Horng, Jeon, Hyon Jin, Panzner, Ursula, Park, Se Eun, Marks, Florian, Owusu-Dabo, Ellis, and Adu-Sarkodie, Yaw

Published
2019
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42. The phylogeography and incidence of multi-drug resistant typhoid fever in sub-Saharan Africa

Author

Park, Se Eun, Pham, Duy Thanh, Boinett, Christine, Wong, Vanessa K., Pak, Gi Deok, Panzner, Ursula, Espinoza, Ligia Maria Cruz, von Kalckreuth, Vera, Im, Justin, Schütt-Gerowitt, Heidi, Crump, John A., Breiman, Robert F., Adu-Sarkodie, Yaw, Owusu-Dabo, Ellis, Rakotozandrindrainy, Raphaël, Soura, Abdramane Bassiahi, Aseffa, Abraham, Gasmelseed, Nagla, Keddy, Karen H., May, Jürgen, Sow, Amy Gassama, Aaby, Peter, Biggs, Holly M., Hertz, Julian T., Montgomery, Joel M., Cosmas, Leonard, Olack, Beatrice, Fields, Barry, Sarpong, Nimako, Razafindrabe, Tsiriniaina Jean Luco, Raminosoa, Tiana Mirana, Kabore, Leon Parfait, Sampo, Emmanuel, Teferi, Mekonnen, Yeshitela, Biruk, El Tayeb, Muna Ahmed, Sooka, Arvinda, Meyer, Christian G., Krumkamp, Ralf, Dekker, Denise Myriam, Jaeger, Anna, Poppert, Sven, Tall, Adama, Niang, Aissatou, Bjerregaard-Andersen, Morten, Løfberg, Sandra Valborg, Seo, Hye Jin, Jeon, Hyon Jin, Deerin, Jessica Fung, Park, Jinkyung, Konings, Frank, Ali, Mohammad, Clemens, John D., Hughes, Peter, Sendagala, Juliet Nsimire, Vudriko, Tobias, Downing, Robert, Ikumapayi, Usman N., Mackenzie, Grant A., Obaro, Stephen, Argimon, Silvia, Aanensen, David M., Page, Andrew, Keane, Jacqueline A., Duchene, Sebastian, Dyson, Zoe, Holt, Kathryn E., Dougan, Gordon, Marks, Florian, and Baker, Stephen

Published
2018
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45. Using drones to transport suspected COVID-19 samples; experiences from the second largest testing centre in Ghana, West Africa

Author

Sylverken, Augustina Angelina, primary, Owusu, Michael, additional, Agbavor, Bernadette, additional, Kwarteng, Alex, additional, Ayisi-Boateng, Nana Kwame, additional, Ofori, Patrick, additional, El-Duah, Philip, additional, Yeboah, Richmond, additional, Aryeetey, Sherihane, additional, Addo Asamoah, Jesse, additional, Ekekpi, Rita Ziem, additional, Oppong, Morrah, additional, Gorman, Richmond, additional, Brempong, Kofi Adjei, additional, Nyarko-Afriyie, Emmanuella, additional, Owusu Bonsu, Felix, additional, Larsen-Reindorf, Rita, additional, Rockson Adjei, Michael, additional, Boateng, Gifty, additional, Asiedu-Bekoe, Franklin, additional, Sarkodie, Badu, additional, Laryea, Dennis O., additional, Tinkorang, Emmanuel, additional, Kumah Aboagye, Patrick, additional, Nsiah Asare, Anthony, additional, Obiri-Danso, Kwasi, additional, Owusu-Dabo, Ellis, additional, Adu-Sarkodie, Yaw, additional, and Phillips, Richard Odame, additional

Published
2022
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48. Estimating typhoid incidence from community-based serosurveys: a multicohort study

Author

Aiemjoy, Kristen, primary, Seidman, Jessica C, additional, Saha, Senjuti, additional, Munira, Sira Jam, additional, Islam Sajib, Mohammad Saiful, additional, Sium, Syed Muktadir Al, additional, Sarkar, Anik, additional, Alam, Nusrat, additional, Zahan, Farha Nusrat, additional, Kabir, Md Shakiul, additional, Tamrakar, Dipesh, additional, Vaidya, Krista, additional, Shrestha, Rajeev, additional, Shakya, Jivan, additional, Katuwal, Nishan, additional, Shrestha, Sony, additional, Yousafzai, Mohammad Tahir, additional, Iqbal, Junaid, additional, Dehraj, Irum Fatima, additional, Ladak, Yasmin, additional, Maria, Noshi, additional, Adnan, Mehreen, additional, Pervaiz, Sadaf, additional, Carter, Alice S, additional, Longley, Ashley T, additional, Fraser, Clare, additional, Ryan, Edward T, additional, Nodoushani, Ariana, additional, Fasano, Alessio, additional, Leonard, Maureen M, additional, Kenyon, Victoria, additional, Bogoch, Isaac I, additional, Jeon, Hyon Jin, additional, Haselbeck, Andrea, additional, Park, Se Eun, additional, Zellweger, Raphaël M, additional, Marks, Florian, additional, Owusu-Dabo, Ellis, additional, Adu-Sarkodie, Yaw, additional, Owusu, Michael, additional, Teunis, Peter, additional, Luby, Stephen P, additional, Garrett, Denise O, additional, Qamar, Farah Naz, additional, Saha, Samir K, additional, Charles, Richelle C, additional, and Andrews, Jason R, additional

Published
2022
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50. Bats carry pathogenic hepadnaviruses antigenically related to hepatitis B virus and capable of infecting human hepatocytes

Author

Drexler, Jan Felix, Geipel, Andreas, König, Alexander, Corman, Victor M., van Riel, Debby, Leijten, Lonneke M., Bremer, Corinna M., Rasche, Andrea, Cottontail, Veronika M., Magangaf, Gael D., Schlegel, Mathias, Müller, Marcel A., Adam, Alexander, Klose, Stefan M., Carneiro, Aroldo José Borges, Stöcker, Andreas, Franke, Carlos Roberto, Rausch, Florian Gloza, Geyer, Joachim, Annan, Augustina, Adu-Sarkodie, Yaw, Oppongn, Samuel, Binger, Tabea, Vallo, Peter, Tschapka, Marco, Ulrich, Rainer G., Gerlich, Wolfram H., Leroy, Eric, Kuiken, Thijs, Glebe, Dieter, and Drosten, Christian

Published
2013

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