Annual report of the National Influenza Surveillance Scheme, 1999

Authors

  • Jennifer Thomson National Centre for Disease Control, Department of Health and Aged Care, GPO Box 9848, Canberra, ACT, Australia 2601
  • Ming Lin National Centre for Disease Control, Department of Health and Aged Care, Canberra, Australian Capital Territory
  • Alan Hampson World Health Organization Collaborating Centre for Influenza Reference and Research, Parkville, Victoria

DOI:

https://doi.org/10.33321/cdi.2000.24.22

Keywords:

surveillance, influenza, influenza vaccine, antigenic drift, case definition

Abstract

An effective national surveillance system is an essential component of a program for the control of influenza. The National Influenza Surveillance Scheme includes data from sentinel general practice consultations for influenza-like illness, laboratory reports of influenza and absenteeism rates from a national employer. The 1999 season peaked between May and September with maximal activity between July and August. Influenza A was the dominant type in all States and Territories with influenza A H3N2 viruses predominating and influenza A H1N1 occurring sporadically. There was no evidence of significant drift among the H3N2 isolates (A/Sydney-like strains) whereas the H1N1 isolates showed significant antigenic changes from the vaccine strain A/Beijing/262/95 and were closely related to a new variant A/New Caledonia/20/99. A small peak in influenza B activity occurred towards the end of the influenza season and isolates remained closely related to the vaccine reference strain B/Beijing/184/93. Commun Dis Intell 2000;24:145-152.

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References

Department of Communicable Disease Surveillance and Control, World Health Organization. Influenza Pandemic Preparedness Plan: The role of WHO and guidelines for national or regional planning. Geneva:Switzerland,1999.

National Health and Medical Research Council. The Australian Immunisation Handbook. 7th ed. Canberra: Australian Government Publishing Services, 2000.

Advisory Committee on Immunization Practices. Prevention and control of influenza: Recommendations of the Advisory Committee on Immunization Practices. MMWR 2000;49[No.RR-3]:1-38.

Curran M, Hampson A. National influenza surveillance, 1997. Commun Dis Intell 1998:22:69-74.

Influenza Pandemic Planning Committee for the Communicable Diseases Network - Australia and New Zealand. A framework for an Australian influenza pandemic plan: version 1. Commun Dis Intell Technical Report Series No. 4 1999:1-179.

Halliday L, Roberts L, Hampson A. Annual report of the National Influenza Surveillance Scheme 1998. Commun Dis Intell 1999;22:69-74.

Quenel P, Dab W, Hannoun C, Cohen JM. Sensitivity, specificity and predictive values of health service based indicators for the surveillance of influenza A epidemics. Int J Epidemiol 1994;23:849-855.

Australian Influenza Vaccine Committee. Australian recommendations for the influenza vaccine composition for the year 2000 season. Commun Dis Intell 1999;23:323.

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Published

30/06/00

How to Cite

Thomson, Jennifer, Ming Lin, and Alan Hampson. 2000. “Annual Report of the National Influenza Surveillance Scheme, 1999”. Communicable Diseases Intelligence 24 (June):145-52. https://doi.org/10.33321/cdi.2000.24.22.

Issue

Vol. 24 (2000)

Section

Annual report

Categories

License

Copyright (c) 2000 Communicable Diseases Intelligence

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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