Highly pathogenic avian influenza viruses with low virulence for chickens in in vivo tests

Avian Pathol. 2007 Oct;36(5):347-50. doi: 10.1080/03079450701589134.

Abstract

Four avian influenza viruses have been recognized that have genetic coding for highly pathogenic avian influenza viruses, but do not show virulence for chickens. The two different mechanisms that prevent this potential being expressed have been determined for A/chicken/Pennsylvania/1/83 (H5N2) and A/goose/Guandong/2/96 (H5N1), but neither of these applies to A/turkey/England/87-92BFC/91 (H5N1) or A/chicken/Texas/298313/04 (H5N2).

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Chickens / virology*
  • Influenza A Virus, H5N1 Subtype / pathogenicity*
  • Influenza A Virus, H5N2 Subtype / pathogenicity*
  • Influenza in Birds / virology*
  • Virulence