The virus is almost identical to a strain of avian influenza virus reported in Asia and may have spread to dogs in live bird markets, said AVMA. (missoulian.com)
But Tompkins warns that repeated vaccinations with distinct hemagglutinins would probably be needed to protect birds from the many strains of avian influenza virus. (sciencemag.org)
One of the greatest influenza pandemic threats at this time is posed by the highly pathogenic H5N1 avian influenza viruses. (pnas.org)