Isolation of Type a Influenza Viruses From the Migratory Waterfowl Along the Mississippi Flyway

This is the authors' abstract. We don't add key points for this paper.

Four type A infleunza viruses were isolated from tracheal swabs taken from apparently healthy ducks (mallards, Anas platyrhynchos) along the Mississippi flyway in Minnesota. Inital identification of group A influenza was made possible by the use of the agar gel precipitin test.