Two influenza viruses were isolated from turkeys in 1973. A/Turkey/Minn/PR/73 was isolated from a flock with a 75% mortality. Antigenically its hemagglutinin was not similar to that of A/Turkey/Wis/66 virus. A/Turkey/Minn/Kandi/73 was recovered from a flock with 67% mortality. This isolant was antigenically similar to A/Turkey/Wis/66.
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