title: Serological evidence of West Nile virus circulation in Portugal.
abstract: The circulation of West Nile virus in Portugal was assessed by serological surveys conducted during 2004-2010 in horses and birds. The detection of WNV antibodies in both species in all the years covered by the study as well as the presence of anti-WNV IgM in symptomatic horses that had not traveled outside the country, support the notion that WNV circulates in Portugal.
authors.affiliation: Laboratório Nacional de Investigação Veterinária, Virologia, Estrada de Benfica 701, 1500-011 Lisboa, Portugal.
authors.forename: Sílvia C
authors.initials: SC
authors.lastname: Barros
authors.forename: Fernanda
authors.initials: F
authors.lastname: Ramos
authors.forename: Teresa
authors.initials: T
authors.lastname: Fagulha
authors.forename: Margarida
authors.initials: M
authors.lastname: Duarte
authors.forename: Margarida
authors.initials: M
authors.lastname: Henriques
authors.forename: Tiago
authors.initials: T
authors.lastname: Luís
authors.forename: Miguel
authors.initials: M
authors.lastname: Fevereiro
mesh_terms: D000818:Animals; D001717:Birds; D006734:Horse Diseases / Q000821:virology; D006736:Horses; D006801:Humans; D011174:Portugal; D018571:Sentinel Surveillance; D014901:West Nile Fever / Q000662:veterinary* / Q000821:virology*; D014902:West Nile virus / Q000302:isolation & purification*