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1. Drug-induced hepatotoxicity and association with slow acetylation variants NAT2*5 and NAT2*6 in Cameroonian patients with tuberculosis and HIV co-infection

Author

Cho, Frederick Nchang, Achidi, Eric A., Enoh, Jude Eteneneng, Pallerla, Srinivas Reddy, Linh, Le Thi Kieu, Tong, Hoang Van, Kamgno, Joseph, Penlap, Véronique Beng, Adegnika, Ayola Akim, Lekana-Douki, Jean-Bernard, Bouyou-Akotet, Marielle Karine, Kahunu, Gauthier Mesia, Lutete, Gaston Tona, Bates, Mathew, Tembo, John, Elton, Linzy, McHugh, Timothy D, Grobusch, Martin P, Zumla, Alimuddin, Ntoumi, Francine, and Velavan, Thirumalaisamy P.

Published
2024
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3. Loiasis

Author

Kamgno, Joseph, Nana-Djeunga, Hugues C., Kouam-Kenmogne, Marc, Hotez, Peter J., Series Editor, Gyapong, John O., editor, and Boatin, Boakye A., editor

Published
2024
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9. Correction to: High infection rates for onchocerciasis and soil-transmitted helminthiasis in children under five not receiving preventive chemotherapy: a bottleneck to elimination

Author

Nana-Djeunga, Hugues C., Djune-Yemeli, Linda, Domche, André, Donfo-Azafack, Cyrille, Efon-Ekangouo, Arnauld, Lenou-Nanga, Cédric, Nzune-Toche, Narcisse, Balog, Yves Aubin, Bopda, Jean Gabin, Mbickmen-Tchana, Stève, Velavan, Thirumalaisamy P., Penlap-Beng, Véronique, Ntoumi, Francine, and Kamgno, Joseph

Published
2022
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10. High infection rates for onchocerciasis and soil-transmitted helminthiasis in children under five not receiving preventive chemotherapy: a bottleneck to elimination

Author

Nana-Djeunga, Hugues C., Djune-Yemeli, Linda, Domche, André, Donfo-Azafack, Cyrille, Efon-Ekangouo, Arnauld, Lenou-Nanga, Cédric, Nzune-Toche, Narcisse, Balog, Yves Aubin, Bopda, Jean Gabin, Mbickmen-Tchana, Stève, Velavan, Tirumalaisamy P., Penlap-Beng, Véronique, Ntoumi, Francine, and Kamgno, Joseph

Published
2022
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11. Persistent transmission of soil-transmitted helminths despite 16 years of uninterrupted Mebendazole- and ivermectin-based preventive chemotherapy in the Lomie Health District (East Region, Cameroon): The emergency of complementary control strategies.

Author

Efon-Ekangouo, Arnauld, De-Gaulle, Virtue F., Emalio, Yannick, Orish, Verner N., Djune-Yemeli, Linda, Simo-Simo, Michèle L., Tsasse, Martine A., Mbakam, Laetitia, Nana-Djeunga, Hugues C., and Kamgno, Joseph

Subjects
SCHOOL children, HAND care & hygiene, ASCARIS lumbricoides, ONCHOCERCIASIS, IVERMECTIN
Abstract

Background: The control of the Soil-Transmitted Helminths (STH) infections primarily relies on the school-based Preventive Chemotherapy (PCT) with mebendazole. Given the efficacy of ivermectin on STH, the control of the latter is expected to be potentialized in areas where ivermectin is also distributed for onchocerciasis and/or lymphatic filariasis control/elimination. This study aimed to assess the prevalence and intensity of STH in the Lomie Health District where annual school-based deworming campaigns and community-directed treatments with Ivermectin have been underway for almost two decades. Methodology/principal findings: A quantitative cross-sectional study was conducted in 10 schools of the Lomie Health District, East Region, Cameroon. Stool samples were collected from school-aged children and analysed using the Kato-Katz technique. Semi-structured questionnaires were administered to enrolees to assess compliance with water, sanitation, and hygiene (WASH). Of the 491 children (median age: 9 years; IQR: 7–10) enrolled, 83.9% (95% CI: 80.3–87.1) were infected with at least one STH species. Trichuris trichiura was the predominant species (78.5%), and no hookworm was found. The prevalence trend slightly decreased between 1987 and 2010 (~8%) and remained unchanged since 2010 (p-value = 0.05). Overall, 46.8% and 41.8% of children were heavy-to-moderately infected with Ascaris lumbricoides and T. trichiura. Poor hand hygiene (OR: 2.24, 95% IC: 1.4–3.4, p-value = 0.0002) and the use of river as a source of drinking water (OR: 14.8, 95% IC: 6.9–33.3, p-value = 0.0001) were the main risk factors associated with the STH infection in Lomie Health District. Conclusions/significance: The persistent high prevalence and intensity of STH infection despite 16 years of mebendazole-based PCT and expected collateral impact of ivermectin mass distribution, points to plausible implementation gaps, poor compliance to WASH or sub-optimal efficacy of the anthelminthics used. This study highlights the need to further assess the cause of the persistent high prevalence and implement context-adapted control measures in order to curb STH transmission. Author summary: Soil-transmitted helminthiasis (STH) is a disease caused by intestinal worms, mainly common in impoverished settings lacking access to water, sanitation, and hygiene structures. Annual mass distribution of mebendazole to at risk groups is the main control strategy. Ivermectin, another community mass-distributed treatment for onchocerciasis and/or lymphatic filariasis control/elimination, also showed a collateral impact on STH control. The Lomie Health District is a predominantly rural setting where annual school-based deworming campaigns and/or community-based preventive chemotherapy with ivermectin for onchocerciasis are ongoing. This study aimed to assess the current prevalence and intensity of STH infection among school-aged children in the Lomie Health District. STH transmission remains substantially high despite the mebendazole-based annual deworming exercises in schools and community-based ivermectin preventive chemotherapy. The current prevalence of the infection is similar to the baseline level 16 years earlier, at the commencement of the MDA strategies. Further studies are needed to understand the contextual determinants of the high STH prevalence to inform targeted interventions to reducing the transmission of the infection in the Lomie Health District. [ABSTRACT FROM AUTHOR]

Published
2024
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12. A novel antigen biomarker for detection of high-level of Loa loa microfilaremia.

Author

Greene, Sarah E., Huang, Yuefang, Fischer, Kerstin, Rosa, Bruce A., Martin, John, Mitreva, Makedonka, Yates, Devyn, Wanji, Samuel, Kamgno, Joseph, Budge, Philip J., Weil, Gary J., and Fischer, Peter U.

Subjects
FILARIASIS, NEGLECTED diseases, ONCHOCERCIASIS, CARTOGRAPHY software, ANTIGEN analysis
Abstract

Background: Loiasis is a disease caused by the nematode Loa loa. Serious adverse events sometimes occur in people with heavy L. loa microfilaremia after ivermectin treatment. In regions of Central Africa where loiasis is endemic, this significantly impedes global elimination programs for lymphatic filariasis and onchocerciasis that use mass distribution of ivermectin. Improved diagnostic tests to identify individuals at increased risk of serious adverse events could facilitate efforts to eliminate lymphatic filariasis and onchocerciasis in this region. Methods and findings: We previously identified the L. loa protein Ll-Bhp-1 in loiasis patient sera. Here, we further characterize Ll-Bhp-1 and report development of an antigen capture ELISA to detect this antigen. This assay detected Ll-Bhp-1 in 74 of 116 (63.8%) loiasis patient sera. Ll-Bhp-1 levels were significantly correlated with L. loa microfilarial counts, and the sensitivity of the assay was highest for samples from people with high counts, (94% and 100% in people with ≥20,000 and ≥50,000 microfilaria per milliliter of blood, respectively). The antigen was not detected in 112 sera from people with other filarial infections, or in 34 control sera from the USA. Conclusions: This Ll-Bhp-1 antigen assay is specific for loiasis, and highly sensitive for identifying people with high L. loa microfilarial counts who are at increased risk for serious adverse events after ivermectin treatment. L. loa antigen detection has the potential to facilitate loiasis mapping efforts and programs to eliminate lymphatic filariasis and onchocerciasis in Central Africa. Author summary: Lymphatic filariasis and onchocerciasis are major neglected tropical diseases that have been targeted for elimination by the World Health Organization. Elimination campaigns for these infections using mass drug administration have had a huge impact in Africa. However, they face a major challenge in 11 countries in Central Africa where there is co-endemic loiasis, another filarial infection caused by the parasite Loa loa. The anti-filarial medication ivermectin that is used in elimination programs can cause serious and fatal adverse drug events in people with heavy loiasis infections, or high blood microfilarial counts. These programs would benefit from practical and affordable screening tests to detect people at high risk of adverse events from ivermectin. Furthermore, loiasis itself causes a variety of negative health outcomes and improved diagnostic tests would help control this infection. Here, we report the development of a sandwich immunoassay that detects the L. loa protein Ll-Bhp-1 in human serum samples. This assay is specific for L. loa infection and is highly sensitive in people with high microfilarial counts. Further work is needed to refine this prototype test and to determine whether antigen testing for loiasis can facilitate filarial eliminations efforts in Central Africa. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Safety and short-term efficacy of a single dose of 2 mg moxidectin in Loa loa infected individuals: a double-blind, randomized ivermectin-controlled trial with ascending microfilarial densities

Author

Wafeu, Guy S, primary, Lepage, Tristan M, additional, Campillo, Jeremy T, additional, Efon-Ekangouo, Arnauld, additional, Nana-Djeunga, Hugues-Clotaire, additional, Nzune-Toche, Narcisse, additional, Domche, André, additional, Sumo, Laurentine, additional, Njitchouang, Guy-Roger, additional, Tsasse, Martine Augusta Flore, additional, Bopda, Jean, additional, Balog, Yves Aubin, additional, Niamsi-Emalio, Yannick, additional, Mbickmen-Tchana, Stève, additional, Talla, Gervais Kamga, additional, Kana, Yannick Sédrick Nguedia, additional, Messina, Félicité Diane Maga, additional, Pion, Sébastien D, additional, Kuesel, Annette C, additional, Kamgno, Joseph, additional, Boussinesq, Michel, additional, and Chesnais, Cedric B, additional

Published
2024
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14. Utility of colposcopy for the screening and management of cervical cancer in Africa: a cross-sectional analysis of providers’ training and practices

Author

Domgue, Joel Fokom, primary, Issimouha, Dille, additional, Gnangnon, Freddy, additional, Kapambwe, Sharon, additional, Bouchard, Celine, additional, Mbatani, Nomonde, additional, Gauroy, Elodie, additional, Ambounda, Nathalie Ledaga, additional, Yu, Robert, additional, Sidibe, Fatoumata, additional, Kamgno, Joseph, additional, Traore, Bangaly, additional, Tebeu, Pierre-Marie, additional, Halle-Ekane, Gregory, additional, Diomande, Mohenou Isidore, additional, Dangou, Jean-Marie, additional, Lecuru, Fabrice, additional, Adewole, Isaac, additional, Plante, Marie, additional, Basu, Partha, additional, and Shete, Sanjay, additional

Published
2024
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17. Correction: Ivermectin and doxycycline treatments against Onchocerciasis: Adaptations and impact among semi-nomadic population in Massangam Health District, Cameroon

Author

Nditanchou, Rogers, primary, Dixon, Ruth, additional, Chailloux, Alexandre, additional, Atekem, Kareen, additional, Biholong, Benjamin, additional, Wilhelm, Aude, additional, Selby, Richard, additional, Oye, Joseph, additional, Kamgno, Joseph, additional, Boakye, Daniel, additional, Schmidt, Elena, additional, and Senyonjo, Laura, additional

Published
2024
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18. Exposure to bovine livestock and latent tuberculosis infection in children: investigating the zoonotic tuberculosis potential in a large urban and peri-urban area of Cameroon

Author

Tsasse, Martine Augusta Flore, primary, Meriki, Henry Dilonga, additional, Nana Djeunga, Hugues Clotaire, additional, Ngwa, Marius Ambe, additional, Tatsilong Pambou, Henri Olivier, additional, Dongmo, Raïssa, additional, Nguessi, Ouethy, additional, Kamgno, Joseph, additional, Kihla Akoachere, Jane Françis Tatah, additional, and Djomo, Patrick Nguipdop, additional

Published
2024
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19. HPV vaccination in Africa in the COVID-19 era: a cross-sectional survey of healthcare providers’ knowledge, training, and recommendation practices

Author

Fokom Domgue, Joel, primary, Dille, Issimouha, additional, Kapambwe, Sharon, additional, Yu, Robert, additional, Gnangnon, Freddy, additional, Chinula, Lameck, additional, Murenzi, Gad, additional, Mbatani, Nomonde, additional, Pande, Mala, additional, Sidibe, Fatoumata, additional, Kamgno, Joseph, additional, Traore, Bangaly, additional, Fazazi, Hicham El, additional, Diop, Mamadou, additional, Tebeu, Pierre-Marie, additional, Diomande, Mohenou Isidore, additional, Lecuru, Fabrice, additional, Adewole, Isaac, additional, Plante, Marie, additional, Basu, Partha, additional, Dangou, Jean-Marie, additional, and Shete, Sanjay, additional

Published
2024
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22. PA-133 Significant reduction in blackfly bites following implementation of slash and clear: an option to consider for onchocerciasis elimination in areas of persistent transmission

Author

Domche, André, primary, Nana Djeunga, Hugues Clotaire, additional, Nwane, Philippe Bienvenu, additional, Njitchouang, Guy Roger, additional, Fesuh, Betrand Nono, additional, Njiokou, Flobert, additional, Benjamin, Jacob, additional, Pion, Sébastien, additional, and Kamgno, Joseph, additional

Published
2023
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23. Onchocerca volvulus transmission in the Mbam valley of Cameroon following 16 years of annual community-directed treatment with ivermectin, and the description of a new cytotype of Simulium squamosum

Author

Hendy, Adam, Krit, Meryam, Pfarr, Kenneth, Laemmer, Christine, De Witte, Jacobus, Nwane, Philippe, Kamgno, Joseph, Nana-Djeunga, Hugues C., Boussinesq, Michel, Dujardin, Jean-Claude, Post, Rory, Colebunders, Robert, O’Neill, Sarah, Enyong, Peter, and Njamnshi, Alfred K.

Published
2021
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25. Point-of-care quantification of blood-borne filarial parasites with a mobile phone microscope.

Author

DAmbrosio, Michael, Bakalar, Matthew, Bennuru, Sasisekhar, Reber, Clay, Skandarajah, Arunan, Nilsson, Lina, Switz, Neil, Kamgno, Joseph, Pion, Sébastien, Boussinesq, Michel, Nutman, Thomas, and Fletcher, Daniel

Subjects
Africa, Central, Algorithms, Animals, Automation, Cameroon, Cell Phone, Elephantiasis, Filarial, False Negative Reactions, Image Processing, Computer-Assisted, Loa, Microscopy, Video, Motion, Onchocerciasis, Point-of-Care Systems, Reproducibility of Results, Sensitivity and Specificity
Abstract

Parasitic helminths cause debilitating diseases that affect millions of people in primarily low-resource settings. Efforts to eliminate onchocerciasis and lymphatic filariasis in Central Africa through mass drug administration have been suspended because of ivermectin-associated serious adverse events, including death, in patients infected with the filarial parasite Loa loa. To safely administer ivermectin for onchocerciasis or lymphatic filariasis in regions co-endemic with L. loa, a strategy termed test and (not) treat has been proposed whereby those with high levels of L. loa microfilariae (>30,000/ml) that put them at risk for life-threatening serious adverse events are identified and excluded from mass drug administration. To enable this, we developed a mobile phone-based video microscope that automatically quantifies L. loa microfilariae in whole blood loaded directly into a small glass capillary from a fingerprick without the need for conventional sample preparation or staining. This point-of-care device automatically captures and analyzes videos of microfilarial motion in whole blood using motorized sample scanning and onboard motion detection, minimizing input from health care workers and providing a quantification of microfilariae per milliliter of whole blood in under 2 min. To validate performance and usability of the mobile phone microscope, we tested 33 potentially Loa-infected patients in Cameroon and confirmed that automated counts correlated with manual thick smear counts (94% specificity; 100% sensitivity). Use of this technology to exclude patients from ivermectin-based treatment at the point of care in Loa-endemic regions would allow resumption/expansion of mass drug administration programs for onchocerciasis and lymphatic filariasis in Central Africa.

Published
2015

29. List of Contributors

Author

Acosta, Anna M., primary, Acuin, Jose M., additional, Adam, Rodney D., additional, Afroze, Farzana, additional, Ahmed, Nadia, additional, Ahmed, Sabeena, additional, Ahmed, Tahmeed, additional, Ahmed, A.M. Shamsir, additional, Ali, S. Asad, additional, Ali, Ibne K., additional, Alroy, Karen A., additional, Ananthakrishnan, Ashwin N., additional, Ansong, Daniel, additional, Anstead, Gregory M., additional, Appleby, Laura J., additional, Armah, George E., additional, Aronson, Naomi E., additional, Aston, Stephen J., additional, Barnett, Elizabeth D., additional, Bartelt, Luther A., additional, Bates, Imelda, additional, Bausch, Daniel G., additional, Beadling, Charles W., additional, Beeching, Nicholas J., additional, Bennish, Michael L., additional, Bern, Caryn, additional, Bernstein, Wendy B., additional, Bird, Brian H., additional, Bloom, Allyson K., additional, Bodeker, Gerard, additional, Boyer Chammard, Timothée, additional, Bradsher, Robert W., additional, Brooker, Simon J., additional, Brooks, W. Abdullah, additional, Brouqui, Philippe, additional, Brown, Michael, additional, Brown, Michael R., additional, Broyles, Laura N., additional, Bruschi, Fabrizio, additional, Bundy, Donald A.P., additional, Burton, Matthew, additional, Cabrera-Sosa, Luis, additional, Callahan, Michael V., additional, Carapetis, Jonathan R., additional, Cardemil, Cristina V., additional, Carrol, Enitan D., additional, Caswell, Rachel, additional, Caumes, Eric, additional, Cavalheiro, Ana P., additional, Chan, Abner L., additional, Charunwatthana, Prakaykaew, additional, Checkley, Anna M., additional, Chen, Lin H., additional, Chher, Tepirou, additional, Chiong, Charlotte M., additional, Chisti, M. Jobayer, additional, Christiani, David C., additional, Clark, Taryn N., additional, Connor, Bradley A., additional, Conway, Devin J., additional, Cooper, Philip J., additional, Cope, Jennifer R., additional, Coughlin, R. Richard, additional, Coulibaly, Yaya I., additional, Coyle, Christina M., additional, Crozier, Ian, additional, Cunliffe, Nigel A., additional, Cupido, Blanche, additional, Curren, Emily J., additional, Danta, Mark, additional, Day, Nicholas P.J., additional, Debboun, Mustapha, additional, DeFraites, Robert F., additional, Dekumyoy, Paron, additional, del Castillo, Maria, additional, den Hoed, Caroline M., additional, de Silva, Nilanthi, additional, Deye, Gregory, additional, Dillingham, Rebecca A., additional, Drancourt, Michel, additional, Durward, Callum S., additional, Eddleston, Michael, additional, El-Kamary, Samer S., additional, Elshaboury, Ramy H., additional, Endtz, Hubert P., additional, Endy, Timothy P., additional, Fang, Shona C., additional, Fawzi, Wafaie, additional, Feasey, Nicholas A., additional, Field, Vanessa K., additional, Fischer, Marc, additional, Forsyth, Kevin, additional, Fournier, Pierre-Edouard, additional, Friedlander, Arthur M., additional, Furin, Jennifer J., additional, Gandhi, Ronak G., additional, Garcia, Hector H., additional, Garcia, Lynne S., additional, Geretti, Anna Maria, additional, Gikas, Achilleas, additional, Gilman, Robert H., additional, Giri, Sidhartha, additional, Gkika, Meropi, additional, Gordon, Melita A., additional, Gosselin, Richard A., additional, Gotuzzo, Eduardo, additional, Gould, Carolyn V., additional, Graeff-Teixeira, Carlos, additional, Graham, Stephen M., additional, Grant, Alison D., additional, Graybill, John R., additional, Graz, Bertrand, additional, Green, Stephen T., additional, Griffiths, Jeffrey K., additional, Griffiths, Michael J., additional, Gryseels, Bruno, additional, Gubler, Duane J., additional, Guhadasan, Rathi, additional, Hall, Aron J., additional, Hamer, Davidson H., additional, Hand, Robert M., additional, Harley, David, additional, Harris, Jason B., additional, Hassall, Oliver, additional, Hay, Roderick J., additional, Hickey, Patrick, additional, Hill, David R., additional, Hills, Susan L., additional, Hobdell, Martin H., additional, Hochberg, Natasha S., additional, Hopkins, Donald R., additional, Hossain, M. Iqbal, additional, Hotez, Peter J., additional, Howard, Cynthia R., additional, Hu, Victor, additional, Hung, Chien-Ching, additional, Islam, Munirul, additional, Iturriza-Gómara, Miren, additional, Joekes, Elizabeth, additional, Johnston, Victoria, additional, Jose, Jo-Ann, additional, Junghanss, Thomas, additional, Kamgno, Joseph, additional, Kampondeni, Sam, additional, Kang, Gagandeep, additional, Kazanjian, Powel, additional, Keshtkar-Jahromi, Maryam, additional, Keshtkar-Jahromi, Marzieh, additional, Keystone, Jay S., additional, Kim, Arthur Y., additional, Kim, Sung-Han, additional, King, Christopher L., additional, Kittitrakul, Chatporn, additional, Kleine, Christian, additional, Klion, Amy D., additional, Knight, Richard, additional, Koren, Michael, additional, Kottilil, Shyamasundaran, additional, Krause, Peter J., additional, Krishna, Sanjeev, additional, Kuhn, Jens H., additional, Kuipers, Ernst J., additional, LaBeaud, Angelle D., additional, Labra, Patrick John P., additional, Lalloo, David G., additional, Lambert, Saba, additional, Lanternier, Fanny, additional, LaRocque, Regina C., additional, Last, Anna, additional, Lawrenson, John, additional, Le, Thuy, additional, Lee, Keun Hwa, additional, Lewis, David A., additional, Libraty, Daniel H., additional, Lo, Nathan C., additional, Lockwood, Diana N.J., additional, Lockwood, Stephen J., additional, Lommerse, Kinke, additional, López-Vélez, Rogelio, additional, Lortholary, Olivier, additional, Mabey, David, additional, Magill, Alan J., additional, Maguiña, Ciro P., additional, Manji, Hadi, additional, Marks, Michael, additional, Maurin, Max, additional, Mayaud, Philippe, additional, Mayosi, Bongani M., additional, M'baya, Bridon, additional, McCarthy, Matthew W., additional, McCartney, Daniel, additional, McCormick, Joseph B., additional, McKew, Stephen, additional, McLellan, Susan L.F., additional, McMinn, Peter C., additional, Mertz, Gregory, additional, Milner, Danny A., additional, Molyneux, Elizabeth M., additional, Montgomery, Susan P., additional, Moonah, Shannon, additional, Moss, William J., additional, Murrell, K. Darwin, additional, Nanda, Neha, additional, Navarro, Eileen E., additional, Ndayizeye, Leonard, additional, Neafie, Ronald C., additional, Negroni, Ricardo, additional, Nelson, Ann M., additional, Newton, Paul N., additional, Nichol, Stuart T., additional, Norman, Francesca F., additional, Nunes, Marcio R.T., additional, Nutman, Thomas B., additional, Nyirenda, Tonney S., additional, Ochoa, Theresa J., additional, O'Farrell, Nigel, additional, Olayemi, Edeghonghon, additional, Oldfield, Edward C., additional, Omidian, Zahra, additional, Ordaya, Eloy E., additional, Paddock, Christopher D., additional, Paessler, Slobodan, additional, Papanikolaou, Ilias C., additional, Paris, Luc, additional, Parry, Christopher M., additional, Patel, Pragna, additional, Peacock, Sharon J., additional, Peeling, Rosanna W., additional, Persson, Hans, additional, Phillips, Jonathan J., additional, Phillips, Richard O., additional, Poovorawan, Kittiyod, additional, Powers, Ann M., additional, Qamar, Farah Naz, additional, Qureshi, Sonia, additional, Rabe, Ingrid B., additional, Rahman, Atif, additional, Rahmati, Elham, additional, Raizes, Elliot, additional, Ramalho-Ortigao, Marcelo, additional, Raoult, Didier, additional, Rein, Michael F., additional, Retik, Alan B., additional, Reynes, Jean-Marc, additional, Rhatigan, Joseph J., additional, Rickard, Jennifer, additional, Riddle, Mark S., additional, Rimoin, Anne W., additional, Riviello, Robert, additional, Robert, Leon L., additional, Rodrigues, Ema G., additional, Rodriguez, Rubens, additional, Ronald, Allan R., additional, Rosenthal, Benjamin M., additional, Rosmarin, David, additional, Ryan, Edward T., additional, Saavedra, Arturo, additional, Schiaffino, Francesca, additional, Schumacher, Sandra K., additional, Sejvar, James J., additional, Sethi, Aisha, additional, Seung, Kwonjune J., additional, Seydel, Karl B., additional, Shah, Melisa M., additional, Shakoor, Sadia, additional, Shankar, Anuraj H., additional, Sharp, Trueman W., additional, Shin, Sonya S., additional, Shirley, Debbie-Ann, additional, Silachamroon, Udomsak, additional, Smith, Catherine C., additional, Snelling, Thomas L., additional, Solomon, Tom, additional, Staat, Mary Allen, additional, Staples, J. Erin, additional, Steiger, Samantha N., additional, Stewart, Robert C., additional, Stich, August, additional, Strickman, Daniel, additional, Suh, Kathryn N., additional, Suhrbier, Andreas, additional, Sutcliffe, Catherine G., additional, Tappe, Dennis, additional, Taylor, Terrie E., additional, Thanh, Nguyen Tat, additional, Thanh, Nguyen Thi, additional, Thwaites, C. Louise, additional, Thwaites, Guy E., additional, Tiwari, Tejpratap S.P., additional, Tsenempi, Xenia A., additional, Turner, Angus W., additional, van den Broek, Nynke R., additional, van Doorn, H. Rogier, additional, Van Sickels, Nicholas J., additional, Vannier, Edouard, additional, Varda, Briony K., additional, Vasconcelos, Pedro F.C., additional, Vega-López, Francisco, additional, Vietri, Nicholas J., additional, Vinetz, Joseph M., additional, Visvesvara, Govinda S., additional, Vyas, Keyur S., additional, Walsh, Thomas J., additional, Wansbrough-Jones, Mark H., additional, Warraich, Haider J., additional, Warrell, David A., additional, Warrell, Mary J., additional, Watt, George, additional, Wattanagoon, Yupaporn, additional, Watthanakulpanich, Dorn, additional, Weaver, Scott C., additional, Weil, Ana A., additional, Weiss, Louis M., additional, White, Nicholas J., additional, Whitty, Christopher J.M., additional, Wilson, Mary E., additional, Xavier, Ramnik J., additional, Xiao, Lihua, additional, Yoon, In-Kyu, additional, Yu, Hongjie, additional, and Zaidi, Anita K.M., additional

Published
2020
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33. Geostatistical mapping to delineate areas of soil-transmitted helminthiasis persistence in Cameroon: a protocol for systematic review and meta-analysis

Author

Djeunga, Hugues C. Nana, primary, Foka-Sindze, Antonia, additional, Sumo, Laurentine, additional, Djune-Yemeli, Linda, additional, Okoyo, Collins, additional, Niamsi-Emalio, Yannick, additional, Nguefack-Tsague, Georges, additional, Njiokou, Flobert, additional, and Kamgno, Joseph, additional

Published
2023
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35. Correction: Onchocerciasis: Target product profiles of in vitro diagnostics to support onchocerciasis elimination mapping and mass drug administration stopping decisions

Author

Biamonte, Marco A., primary, Cantey, Paul T., additional, Coulibaly, Yaya I., additional, Gass, Katherine M., additional, Hamill, Louise C., additional, Hanna, Christopher, additional, Lammie, Patrick J., additional, Kamgno, Joseph, additional, Nutman, Thomas B., additional, Oguttu, David W., additional, Sankara, Dieudonné P., additional, Stolk, Wilma A., additional, and Unnasch, Thomas R., additional

Published
2023
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36. Loiasis

Author

Kamgno, Joseph, Nana-Djeunga, Hugues Clotaire, Kouam-Kenmogne, Marc, Hotez, Peter, Series editor, Gyapong, John, editor, and Boatin, Boakye, editor

Published
2016
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39. HPV vaccination in Africa in the COVID-19 era: a cross-sectional survey of healthcare providers' knowledge, training, and recommendation practices.

Author

Domgue, Joel Fokom, Dille, Issimouha, Kapambwe, Sharon, Yu, Robert, Gnangnon, Freddy, Chinula, Lameck, Murenzi, Gad, Mbatani, Nomonde, Pande, Mala, Sidibe, Fatoumata, Kamgno, Joseph, Traore, Bangaly, El Fazazi, Hicham, Diop, Mamadou, Tebeu, Pierre-Marie, Diomande, Mohenou Isidore, Lecuru, Fabrice, Adewole, Isaac, Plante, Marie, and Basu, Partha

Published
2024
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41. Impact of short-term discontinuation of ivermectin-based chemoprevention on onchocerciasis transmission in endemic settings with long history of mass drug administration

Author

Efon-Ekangouo, Arnauld, primary, Nana-Djeunga, Hugues C., additional, Nzune-Toche, Narcisse, additional, Dongmo-Yemele, Raïssa, additional, Bopda, Jean, additional, Ongbassomben, Viviane, additional, Sumo, Laurentine, additional, Geiger, Anne, additional, Nutman, Thomas B., additional, and Kamgno, Joseph, additional

Published
2023
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42. Acceptability of test and treat with doxycycline against Onchocerciasis in an area of persistent transmission in Massangam Health District, Cameroon

Author

Nditanchou, Rogers, primary, Dixon, Ruth, additional, Atekem, Kareen, additional, Akongo, Serge, additional, Biholong, Benjamin, additional, Ayisi, Franklin, additional, Nwane, Philippe, additional, Wilhelm, Aude, additional, Basnet, Sapana, additional, Selby, Richard, additional, Wanji, Samuel, additional, Bakajika, Didier, additional, Oye, Joseph, additional, Kamgno, Joseph, additional, Boakye, Daniel, additional, Schmidt, Elena, additional, and Senyonjo, Laura, additional

Published
2023
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44. Limitations of PCR detection of filarial DNA in human stools from subjects non-infected with soil-transmitted helminths

Author

Doret Maxime P. M., Nana-Djeunga Hugues C., Nzune-Toche Narcisse, Pion Sébastien D. S., Chesnais Cédric B., Boussinesq Michel, Kamgno Joseph, Varlet-Marie Emmanuelle, and Locatelli Sabrina

Subjects
mansonella perstans, loa loa, stool sample, pcr, cameroon, Infectious and parasitic diseases, RC109-216
Abstract

The standard techniques for diagnosis of human filariasis are the microscopic examination of blood smears or skin biopsies, which are relatively invasive and poorly sensitive at low levels of infection. Recently, filarial DNA has been detected in fecal samples from non-human primates in Central Africa. The aim of this study was to demonstrate proof-of-concept of a non-invasive molecular diagnosis technique for human filariasis by targeting fragments of 12S rDNA, Cox1, ITS1 and LL20-15kDa ladder antigen-gene by conventional PCR in DNA extracted from stool samples of 52 people infected with Mansonella perstans and/or Loa loa. Of these, 10 patients were infected with soil-transmitted helminths (Trichuris trichiura and/or Ascaris lumbricoides), and none were positive for Necator americanus. Interestingly, no filarial gene fragments were detected in the stools of any of the 52 patients. Future studies should evaluate whether a co-infection with soil-transmitted helminths causing gastrointestinal bleeding and likely allowing (micro)filaria exit into the digestive tract, may facilitate the molecular detection of filarial DNA fragments in stool samples.

Published
2021
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