The occurrence of avian influenza A subtype H6N2 in commercial layer flocks in Southern California (2000-02): Clinicopathologic findings

Hailu Kinde, Deryck H. Read, Barbara M. Daft, Marion Hammarlund, Janet Moore, Francisco A Uzal, Jenee Mukai, Peter Woolcock

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Between February 2000 and February 2002, the California Animal Health and Food Safety Laboratory System diagnosed 26 cases of low-pathogenic H6N2 avian influenza from 12 commercial egg-laying farms. The most common gross and histologlc lesions observed in infected chickens were fibrinous yolk peritonitis, salpingitis, oophoritis, and nephritis. Edema of the mesentery of the oviduct and pale, swollen kidneys were also observed. Mortality in infected flocks ranged from 0.25% to 3%, and egg production dropped 7% to 40%.

Original languageEnglish (US)
Pages (from-to)1214-1218
Number of pages5
JournalAvian Diseases
Volume47
Issue numberSPEC. ISS.
StatePublished - 2003

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Keywords

  • Avian influenza
  • Egg-laying hens
  • H6N2

ASJC Scopus subject areas

  • Immunology
  • Cancer Research
  • veterinary(all)

Cite this

Kinde, H., Read, D. H., Daft, B. M., Hammarlund, M., Moore, J., Uzal, F. A., Mukai, J., & Woolcock, P. (2003). The occurrence of avian influenza A subtype H6N2 in commercial layer flocks in Southern California (2000-02): Clinicopathologic findings. Avian Diseases, 47(SPEC. ISS.), 1214-1218.