摘要：Surveillance of influenza in Australia in 2000 was based on data from national and state-based sentinel generalpractice consultations for influenza-like illness, laboratory isolations of influenza virus and absenteeism rates froma national employer. The peak in influenza cases was in mid-September. Influenza A was the dominant strain, withthe highest proportion being influenza A (H3N2), but with a significant proportion of isolates of influenza A (H1N1)(16%) for the first time since 1995. The influenza A (H3N2) isolates were predominantly related to A/Moscow/10/99and vaccine strain A/Panama/2007/99. Influenza A (H1N1) was predominantly A/New Caledonia/20/99. Theproportion of Influenza B viruses isolated also increased in keeping with a three-yearly cycle of influenza Bepidemics in Australia. influenza B isolates showed a progressive drift away from the B/Beijing/184/93 strain withthe majority closely related to the B/Sichuan/379/99 strain. In 2000, influenza vaccination levels reached 74 per centin persons aged over 65 years
关键词：influenza; surveillance; vaccine; general practice; strains
