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M.D. Bajani, O. Tomori, P.E. Rollin, T.O. Harry, N.D. Bukbuk, L. Wilson, J.E. Childs, C.J. Peters, T.G. Ksiazek, A survey for antibodies to Lassa virus among health workers in Nigeria, Transactions of The Royal Society of Tropical Medicine and Hygiene, Volume 91, Issue 4, July-August 1997, Pages 379–381, https://doi.org/10.1016/S0035-9203(97)90247-9
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Abstract
A study was conducted among 552 health workers at 6 health facilities in Nigeria. Lassa virus immunoglobulin (Ig) G antibody was detected in 12 · 3%, using an enzyme-linked immunosorbent assay. Antibody prevalence in the 6 health centres ranged from 1 · 2% to 27 · 3%. Prevalences were higher in primary and secondary health facilities than in tertiary centres. Seroprevalences ranged from 1 · 7% to 23 · 7% among different occupational groups of health workers; the highest observed antibody prevalence was among ward aids. Lassa virus IgM antibody, indicating recent infection, was present in 6 of the health workers, 5 of whom were ward aids and one was a nurse. All of the health workers with specific IgM came from a single facility in Lafia, sampled during an outbreak of Lassa fever.
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