Annual report of the National Influenza Surveillance Scheme, 2004

Authors

  • Janet Li Communicable Disease Management and Policy Section, Biosecurity and Disease Control Branch, Department of Health and Ageing, Canberra, Australian Capital Territory
  • Alan Hampson WHO Collaborating Centre for Reference and Research on Influenza, Parkville, Victoria
  • Paul Roche Surveillance Section, Biosecurity and Disease Control Branch, Department of Health and Ageing, Canberra, Australian Capital Territory
  • Keflemariam Yohannes Surveillance Section, Biosecurity and Disease Control Branch, Department of Health and Ageing, Canberra, Australian Capital Territory
  • Jenean Spencer Surveillance Section, Biosecurity and Disease Control Branch, Department of Health and Ageing, Canberra, Australian Capital Territory

DOI:

https://doi.org/10.33321/cdi.2005.29.11

Keywords:

disease surveillance, influenza, vaccine

Abstract

The National Influenza Surveillance Scheme includes data on influenza-like illness from sentinel general practitioner practices, laboratory reports of influenza from National Notifiable Diseases Surveillance System and absenteeism data from a national employer. In 2004, 2,116 cases of laboratory-confirmed influenza-like illness were reported, which was 41 per cent lower than the previous year. Peak activity was recorded in September, a month later than in 2003. Influenza A was again predominant while influenza B had an increased activity compared to the previous season. Four hundred and fifty-four isolates were antigenically analysed: 342 were A (H3N2 strain), 4 were A(H1N1 strain) strains and 108 were influenza B viruses. Further antigenic drift was seen in the A(H3N2) subtype with approximately one third of all isolates antigenically distinguishable from the A/Fujian/411/2002 reference strain. Vaccination coverage indicated that 79 per cent of Australians aged over 65 years received the 2004 influenza vaccine. Commun Dis Intell 2005;29:124-135.

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References

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Published

01/06/05

How to Cite

Li, Janet, Alan Hampson, Paul Roche, Keflemariam Yohannes, and Jenean Spencer. 2005. “Annual Report of the National Influenza Surveillance Scheme, 2004”. Communicable Diseases Intelligence 29 (June):124-35. https://doi.org/10.33321/cdi.2005.29.11.

Issue

Vol. 29 (2005)

Section

Annual report

Categories

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Copyright (c) 2005 Communicable Diseases Intelligence

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