Article
Recent influenza A (H1N1) infections of pigs and turkeys in northern Europe.
Virology - 1 Jul 1994
Ludwig S, Haustein A, Kaleta E F, Scholtissek C
Abstract excerpt
The most recent introduction of an avian influenza A virus without reassortment into mammals occurred in 1979 when H1N1 strains could be isolated from diseased pigs in northern Europe. This newly introduced avian virus formed a stable lineage in pigs and, in the meantime, spread all over Europe. In 1991 highly pathogenic H1N1 strains closely related to a contemporary swine virus were isolated from turkeys of a...
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