Antibodies to H5 subtype avian influenza virus and Japanese encephalitis virus in northern pintails (Anas acuta) sampled in Japan

作者：Ramey Andrew M^*; Spackman Erica; Yeh Jung Yong; Fujita Go; Konishi Kan; Uchida Kiyoshi; Reed John A; Wicox Benjamin R; Brown Justin D; Stallknecht David E

来源：Japanese Journal of Veterinary Research, 2013, 61(3): 117-123.

• avian influenza virus
• Japanese encephalitis virus
• West Nile virus

Blood samples from 105 northern pintails (Anas acuta) captured on Hokkaido, Japan were tested for antibodies to avian influenza virus (AIV), Japanese encephalitis virus (JEV), and West Nile virus (WNV) to assess possible involvement of this species in the spread of economically important and potentially zoonotic pathogens. Antibodies to AIV were detected in 64 of 105 samples (61%). Of the 64 positives, 95% and 81% inhibited agglutination of two different H5 AIV antigens (H5N1 and H5N9), respectively. Antibodies to JEV and WNV were detected in five (5%) and none of the samples, respectively. Results provide evidence for prior exposure of migrating northern pintails to H5 AIV which could have implications for viral shedding and disease occurrence. Results also provide evidence for limited involvement of this species in the transmission and spread of flaviviruses during spring migration.

• 出版日期2013-8