Influenza (flu)
H1N1 virus
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H7N1 is a subtype of the species Influenza A virus (sometimes called bird flu virus).[citation needed]

H7N1 was first isolated in 1972, from Eurasian siskin.[1]

A highly pathogenic strain of it caused a flu outbreak with significant spread to numerous farms, resulting in great economic losses in 1999 in Italy in turkeys.[2]

References

  1. ^ Dorrestein, Gerry M. (2009). "Passerines". 8 – Passerines. pp. 169–208. doi:10.1016/B978-0-7020-2874-8.00008-0. ISBN 9780702028748. S2CID 219547336.
  2. ^ "WHO – Avian influenza A(H5N1)- update 31: Situation (poultry) in Asia: need for a long-term response, comparison with previous outbreaks". WHO. Archived from the original on 7 March 2004. Retrieved 10 December 2018.
Allikas: https://en.wikipedia.org/wiki/Influenza_A_virus_subtype_H7N1
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