No evidence of avian influenza antibodies in two species of raptor nestlings inhabiting Norway
Lee, M.M.; Jaspers, V.L.B.; Loseth, M.E.; Briels, N.; Nygard, T.; Bustnes, J.O.; Waugh, C.A. (2019). No evidence of avian influenza antibodies in two species of raptor nestlings inhabiting Norway. Bmc Veterinary Research 15(1): 375. https://dx.doi.org/10.1186/s12917-019-2133-0
In: BMC Veterinary Research. BMC: London. e-ISSN 1746-6148, meer
Since 2016, incursions of highly pathogenic avian influenza virus (HPAIV) H5N8 clade 2.3.4.4b have caused unprecedented clinical signs and mortality in white-tailed eagles (WTE; Haliaeetus albicilla) across Europe and have been found to be infecting other raptor species, such as the northern goshawk (NG; Accipiter gentilis). Before this study, no screening of Norwegian raptors had been undertaken.
Results
Plasma samples from 43 white-tailed eagle and 29 northern goshawk nestlings, from several locations across Norway were screened for antibodies to avian influenza viruses. No antibodies, and thus, no evidence of AIV exposure, were found in these Norwegian raptors. No clinical signs of AIV were observed in 43 white tailed eagles and 29 northern goshawks.
Conclusions
There are currently no indications that white-tailed eagles and northern goshawks inhabiting Norway are threatened by the recent HPAIV outbreaks in other areas of Europe. Ongoing monitoring should, however, be maintained to detect potential future outbreaks.
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