Wild Birds in Romania Are More Exposed to West Nile Virus Than to Newcastle Disease Virus
2016
Paştiu, Anamaria Ioana | Pap, Péter László | Vágási, Csongor István | Niculae, Mihaela | Páll, Emőke | Domșa, Cristian | Brudaşcă, Florinel Ghe | Spînu, Marina
The aim of this study was to evaluate the seroprevalence of West Nile virus (WNV) and Newcastle disease virus (NDV) in wild and domestic birds from Romania. During 2011–2014, 159 plasma samples from wild birds assigned to 11 orders, 27 families, and 61 species and from 21 domestic birds (Gallus gallus domesticus, Anas platyrhynchos domesticus) were collected. The sera were assayed by two commercial competitive enzyme-linked immunosorbent assay (cELISA) kits for antibodies against WNV and NDV. We found a high prevalence of WNV antibodies in both domestic (19.1%) and wild (32.1%) birds captured after the human epidemic in 2010. Moreover, the presence of anti-NDV antibodies among wild birds from Romania (5.4%) was confirmed serologically for the first time, as far as we are aware. Our findings provide evidence that wild birds, especially resident ones are involved in local West Nile and Newcastle disease enzootic and epizootic cycles. These may allow virus maintenance and spread and also enhance the chance of new outbreaks.
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