Validation and Identification of Invasive Salmonella Serotypes in Sub-Saharan Africa by Multiplex Polymerase Chain Reaction.
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Salmonella enterica serovar Typhi and nontyphoidal Salmonella (NTS) cause the majority of bloodstream infections in sub-Saharan Africa; however, serotyping is rarely performed. We validated a multiplex polymerase chain reaction (PCR) assay with the White-Kauffmann-Le Minor (WKLM) scheme of serotyping using 110 Salmonella isolates from blood cultures of febrile children in Ghana and applied the method in other Typhoid Fever Surveillance in Africa Program study sites. In Ghana, 47 (43%) S. Typhi, 36 (33%) Salmonella enterica serovar Typhimurium, 14 (13%) Salmonella enterica serovar Dublin, and 13 (12%) Salmonella enterica serovar Enteritidis were identified by both multiplex PCR and the WKLM scheme separately. Using the validated multiplex PCR assay, we identified 42 (66%) S. Typhi, 14 (22%) S. Typhimurium, 2 (3%) S. Dublin, 2 (3%) S. Enteritidis, and 4 (6%) other Salmonella species from the febrile patients in Burkina Faso, Guinea-Bissau, Madagascar, Senegal, and Tanzania. Application of this multiplex PCR assay in sub-Saharan Africa could advance the knowledge of serotype distribution of Salmonella.
Africa South of the Sahara
Multiplex Polymerase Chain Reaction
Published Version (Please cite this version)10.1093/cid/civ782
Publication InfoAl-Emran, Hassan M; Krumkamp, Ralf; Dekker, Denise Myriam; Eibach, Daniel; Aaby, Peter; Adu-Sarkodie, Yaw; ... Marks, Florian (2016). Validation and Identification of Invasive Salmonella Serotypes in Sub-Saharan Africa by Multiplex Polymerase Chain Reaction. Clin Infect Dis, 62 Suppl 1. pp. S80-S82. 10.1093/cid/civ782. Retrieved from https://hdl.handle.net/10161/13757.
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Adjunct Professor in the Department of Medicine
I am based in northern Tanzania where I am Site Leader for Duke University’s collaborative research program based at Kilimanjaro Christian Medical Centre and Director of Tanzania Operations for the Duke Global Health Institute. I oversee the design and implementation of research studies on infectious diseases, particularly febrile illness, invasive bacterial disease, HIV-associated opportunistic infections, clinical trials of antiretroviral therapy and prevention of mother-to-child tr
Assistant Professor of Surgery
Associate Professor of Medicine
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