West Nile and St. Louis encephalitis viruses antibodies surveillance in captive and free-ranging birds of prey from Argentina

QUAGLIA A; DIAZ LA; ARGIBAY H; CONTIGIANI MS; SAGGESE M

ECOHEALTH

SPRINGER

Lugar: Berlin; Año: 2014 vol. 11 p. 603 - 609

1612-9202

We evaluated the prevalence of WNV and SLEV neutralizing antibodies in captive and free-ranging raptors from Argentina by plaque-reduction neutralization test. Eighty plasma samples from 12 species were analyzed. Only one captive adult Crowned Eagle (Harpyhaliaetus coronatus) was WNV seropositive (prevalence: 1.25%; antibody titer of 1:80). Two captive Crowned Eagles were SLEV seropositive (prevalence: 2.50%; antibody titers: 1:80 and 1:40).These findings expand the geographic distribution of WNV and SLEV and confirm their activity in central and northeastern Argentina. West Nile virus activity in Argentina may represent a potential threat to Crowned Eagles and other endangered raptors in this country.