Isolation of influenza A viruses from migratory waterfowls in San-in District, Western Japan, in the winter of 1982-1983.
From November 1982 to March 1983, winter migratory waterfowls of some species staying in San-in District, Western Japan, were surveyed for influenza virus at five stations. A total of eight influenza A viruses were isolated from 354 faeces samples of whistling swans; in contrast, no virus was isolated from any sample of 261 black-tailed gulls, of 113 pintails and of 10 mallards. Five of eight isolates belonged to human pandemic subtype H2N2, two isolates belonged to fowl plague subtype H7N7, and the remaining one to subtype H4N6.
D000818:Animals; D000835:Animals, Wild / Q000382:microbiology*; D001717:Birds / Q000382:microbiology*; D004197:Disease Reservoirs; D005243:Feces / Q000382:microbiology; D009980:Influenza A virus / Q000145:classification / Q000302:isolation & purification*; D007564:Japan; D051379:Mice; D013045:Species Specificity