Avian influenza: recent developments.

摘要: This paper reviews the worldwide situation regarding avian influenza infections in poultry from 1997 to March 2004. The increase number of primary introductions and scientific data available on molecular basis pathogenicity have generated concerns particularly for legislative purposes international trade. has led a new proposed definition 'avian influenza' extend all caused by H5 H7 viruses regardless their virulence as notifiable diseases, although this encountered some difficulties being approved. also major outbreaks or subtype control measures applied. zoonotic aspects influenza, which until were considered be limited relevance human medicine, are discussed. health implications now gained importance, both illness fatalities that occurred following natural infection with viruses, potential generating reassortant virus could give rise next pandemic.