Epidemiological link between exposure to poultry and all influenza A(H7N9) confirmed cases in Huzhou city, China, March to May 2013

Euro Surveill. 2013 May 16;18(20):20481.

Abstract

We analysed the association between influenza A(H7N9) confirmed cases and exposure to poultry in Huzhou city, China. All cases (n=12) had a history of direct exposure to poultry or live poultry markets. We detected A(H7N9)-positive poultry samples from each site that was epidemiologically associated with cases. None of the cases’ close contacts tested positive. After closure of the markets, no new cases were identified, suggesting an epidemiological link between poultry exposure and A(H7N9) virus infection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Animals
  • China / epidemiology
  • Environmental Exposure*
  • Female
  • Humans
  • Influenza A virus / isolation & purification*
  • Influenza in Birds / transmission*
  • Influenza in Birds / virology
  • Influenza, Human / diagnosis
  • Influenza, Human / epidemiology*
  • Influenza, Human / transmission
  • Influenza, Human / virology
  • Male
  • Middle Aged
  • Poultry