title: A preliminary survey of the epidemiology of bluetongue in Costa Rica and northern Colombia.
abstract: Recent evidence of bluetongue (BT) virus infection of livestock in scattered localities in the neotropics prompted a serologic survey of cattle in Colombia and Costa Rica. In Costa Rica 48.1% of 1435 bovine animals had BT virus antibody in the agar gel precipitation test (AGPT). In Colombia 51.8% of 635 cattle were AGPT-positive for BT virus. Antibody prevalence ranged from over 50% in the lowlands to 0% in Costa Rica and 19% in Colombian cattle above 2000 m altitude. Neutralization tests indicated that Costa Rican cattle had been exposed to BT virus types 6, 12, 14 and 17.
authors.forename: E J
authors.initials: EJ
authors.lastname: Homan
authors.forename: H
authors.initials: H
authors.lastname: Lorbacher de Ruiz
authors.forename: A P
authors.initials: AP
authors.lastname: Donato
authors.forename: W P
authors.initials: WP
authors.lastname: Taylor
authors.forename: T M
authors.initials: TM
authors.lastname: Yuill
mesh_terms: D000531:Altitude; D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D001819:Bluetongue / Q000453:epidemiology*; D001820:Bluetongue virus / Q000276:immunology*; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D003105:Colombia; D003364:Costa Rica; D005779:Immunodiffusion; D009500:Neutralization Tests; D012087:Reoviridae / Q000276:immunology*; D012756:Sheep
chemical_list: D000914:Antibodies, Viral