title: Circulation of African horsesickness virus in zebra (Equus burchelli) in the Kruger National Park, South Africa, as measured by the prevalence of type specific antibodies.
abstract: In the Kruger National Park 75% of zebra foals are born in October-March and they lose their passive immunity against African horsesickness virus (AHSV) when they are 5-6 months old. One month later infection with different serotypes of AHSV amounts to 31% and thereafter infections increase rapidly to almost 100% before the foals are 12 months old. The capability of zebra to maintain AHSV is clearly illustrated by the continuing infections during every month of the year with a peak period in winter. This peak is ascribed to the presence of large numbers of susceptible foals in the presence of active Culicoides species.
authors.affiliation: Onderstepoort Veterinary Institute, South Africa.
authors.forename: B J
authors.initials: BJ
authors.lastname: Barnard
mesh_terms: D000355:African Horse Sickness / Q000276:immunology*; D000356:African Horse Sickness Virus / Q000276:immunology*; D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D010527:Perissodactyla / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral