Avian influenza in Italy 1997-2001

Avian Dis. 2003;47(3 Suppl):839-43. doi: 10.1637/0005-2086-47.s3.839.

Abstract

From 1997 to 2001, Italy has been affected by two epidemics of high-pathogenicity avian influenza. The first epidemic was caused by a virus of the H5N2 subtype and was limited to eight premises in backyard and semi-intensive flocks. The prompt identification of the disease was followed by the implementation of European Union (EU) directive 92/40/EEC and resulted in the eradication of infection without serious consequences to the poultry industry. The 1999-00 epidemic was caused by a virus of the H7N1 subtype that originated from the mutation of a low pathogenic virus and resulted instead in a devastating epidemic that affected industrially reared poultry, culminating in the infection of 413 flocks. The description of the epidemics and the result of the control policies are reported.

MeSH terms

  • Animals
  • Chickens
  • Disease Outbreaks / veterinary
  • Influenza A virus / classification
  • Influenza A virus / isolation & purification*
  • Influenza A virus / pathogenicity
  • Influenza Vaccines
  • Influenza in Birds / epidemiology*
  • Influenza in Birds / immunology
  • Italy / epidemiology
  • Poultry Diseases / epidemiology*
  • Poultry Diseases / immunology
  • Poultry Diseases / virology

Substances

  • Influenza Vaccines