Seroprevalence of five arboviruses in Zebu cattle in the Central African Republic
Autor(es): Guilherme J M, Gonella-Legall C, Legall F, Nakoume E, Vincent J
Resumo: Sequential blood samples taken from 237 adult - 147 young Zebu cattle in the Central African Republic (CAR) were examined by enzyme-linked immunosorbent assay for the presence of antibodies to Rift Valley Fever (RVF), Dugbe (DUG), Crimean-Congo haemorrhagic fever (CCHF), Chikungunya (CHIK) - Wesselsbron (WSL) viruses. Antibodies to DUG - CCHF viruses were detected in 70% - 61% respectively, of the sera from adult cattle, probably due to common antigens. This hypothesis is supported by the fact that CCHF virus was isolated only 3 times from ticks, whereas DUG virus was isolated from almost all ticks. Ticks of the genus Hyalorama, the most important vectors of CCHF, are rare on Zebus in CAR. CCHF virus has a limited role in local human pathology, probably because its distribution is limited by the scarcity of its main vector - the immunological barrier resulting from the presence of antibodies to DUG virus. Antibodies to RVF virus were found in about 8% of adult cattle. Zebus do not play an important role in the spread of CHIK - WSL viruses among humans; these viruses were found in only one - 5, respectively, of the 183 cattle examined.
Palavras-Chave: Zebu cattle; Rift Valley fever virus; Dugbe virus; Crimean-Congo haemorrhagic fever virus; Chikungunya virus; Wesselbron virus; Central African Republic
Imprenta: Transactions of the Royal Society of Tropical Medicine and Hygiene, v. 90, n. 1, p. 31-33, 1996
Descritores: Chikungunya virus - Arbovirus ; Chikungunya virus - Cytopathology ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Antibodies ; Chikungunya Virus - Virus ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Public health
Data de publicação: 1996
