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Performance characteristics and costs of serological tests for brucellosis in a pastoralist community of northern Tanzania

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dc.creator Lukambagire, AS
dc.creator Mendes, AJ
dc.creator Bodenham, RF
dc.creator McGiven, JA
dc.creator Mkenda, NA
dc.creator Mathew, C
dc.creator Rubach, MP
dc.creator Sakasaka, P
dc.creator Shayo, DD
dc.creator Maro, VP
dc.creator Shirima, GM
dc.creator Thomas, KM
dc.creator Kassanga, CJ
dc.creator Kazwala, RR
dc.creator Halliday, JEB
dc.creator Mmbaga, BT
dc.date 2021-05-11T11:54:26Z
dc.date 2021-05-11T11:54:26Z
dc.date 2021
dc.date.accessioned 2022-10-25T08:53:41Z
dc.date.available 2022-10-25T08:53:41Z
dc.identifier | https://doi.org/10.1038/s41598-021-82906-w
dc.identifier https://www.suaire.sua.ac.tz/handle/123456789/3506
dc.identifier.uri http://hdl.handle.net/123456789/94028
dc.description The control of brucellosis across sub-Saharan Africa is hampered by the lack of standardized testing and the use of tests with poor performance. This study evaluated the performance and costs of serological assays for human brucellosis in a pastoralist community in northern Tanzania. Serum collected from 218 febrile hospital patients was used to evaluate the performance of seven index tests, selected based on international recommendation or current use. We evaluated the Rose Bengal test (RBT) using two protocols, four commercial agglutination tests and a competitive enzymelinked immunosorbent assay (cELISA). The sensitivity, specificity, positive predictive value, negative predictive value, Youden’s index, diagnostic accuracy, and per-sample cost of each index test were estimated. The diagnostic accuracy estimates ranged from 95.9 to 97.7% for the RBT, 55.0 to 72.0% for the commercial plate tests, and 89.4% for the cELISA. The per-sample cost range was $0.69–$0.79 for the RBT, $1.03–$1.14 for the commercial plate tests, and $2.51 for the cELISA. The widely used commercial plate tests performed poorly and cost more than the RBT. These findings provide evidence for the public health value of discontinuing the use of commercial agglutination tests for human brucellosis in Tanzania.
dc.description DELTAS Africa Initiative Afrique One-ASPIRE scholarship scheme (Afrique One-ASPIRE/DEL-15-008, http://afriq ueone aspir e.org). Â.J.M is supported by The University of Glasgow’s Lord Kelvin/Adam Smith (LKAS) PhD scholarship. R.F.B received scholarship support from the UK Biotechnology and Biological Sciences Research Council (BBSRC), Department for International Development (DFID), the Economic & Social Research Council, the Medical Research Council, the Natural Environment Research Council and the Defence Science & Technology Laboratory, under the Zoonoses and Emerging Livestock Systems – Associated Studentship (ZELS-AS) programme (grant number BB/N503563/1). This study was also supported by the Zoonoses and Emerging Livestock Systems program grant numbers BB/L018845 and BB/ L017679 http://www.bbsrc .ac.uk/).
dc.format application/pdf
dc.language en
dc.publisher Nature scientific Report
dc.subject serological tests
dc.subject brucellosis control
dc.subject pastoralist community
dc.subject public health
dc.subject Tanzania
dc.title Performance characteristics and costs of serological tests for brucellosis in a pastoralist community of northern Tanzania
dc.type Article


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