Further details about the outbreaks of avian influenza in chicken farms in Hong Kong (1), including the latest figures, have been circulated on ProMED-mail
(
http://www.promedmail.org/)
Virus characterization results show the outbreak to be due to H5N1 avian influenza virus (genetically different from HK/1997 (H5N1)). The genome sequence for the haemagglutinin cleavage site coded for multiple basic amino acids (2).
Updated information will be available in the 24 January issue of Office international des epizooties’ Weekly Disease Information
(http://www.oie.int/eng/info/hebdo/A_INFO.HTM).