title: Detection of antibodies to West Nile virus in horses, Costa Rica, 2004.
abstract: We conducted a serosurvey for West Nile virus (WNV) infection in equines in Costa Rica in 2004. Antibodies to WNV were detected in 28% of the horses using an epitope blocking ELISA that is specific for WNV. WNV infection was confirmed for a subset of these sera by plaque reduction neutralization tests and Western blot. This is the first evidence of WNV activity in Costa Rica.
authors.affiliation: Australian Infectious Disease Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland, Australia.
authors.forename: Jody
authors.initials: J
authors.lastname: Hobson-Peters
authors.forename: Carolina
authors.initials: C
authors.lastname: Arévalo
authors.forename: Wai Yuen
authors.initials: WY
authors.lastname: Cheah
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Blitvich
authors.forename: Cindy Si En
authors.initials: CS
authors.lastname: Tan
authors.forename: Alexis
authors.initials: A
authors.lastname: Sandis
authors.forename: Luis Nazario
authors.initials: LN
authors.lastname: Araya
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Hernández
authors.forename: Philip
authors.initials: P
authors.lastname: Toye
authors.forename: Roy A
authors.initials: RA
authors.lastname: Hall
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D003364:Costa Rica / Q000453:epidemiology; D004797:Enzyme-Linked Immunosorbent Assay; D006734:Horse Diseases / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology*; D006736:Horses; D014901:West Nile Fever / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology*; D014902:West Nile virus / Q000276:immunology* / Q000302:isolation & purification
chemical_list: D000914:Antibodies, Viral