《英文msh词典》Influenza A viruses
[入口词] Influenza A viruses
[主题词] Influenza A virus
[英文释义] The type species of the genus INFLUENZAVIRUS A that causes INFLUENZA and other diseases in humans and animals. Antigenic variation occurs frequently between strains,allowing classification into subtypes and variants. Transmission is by aerosol (human and most non-aquatic hosts) or waterborne (ducks).