Epidemiology of Influenza-like Illness during Pandemic (H1N1) 2009, New South Wales, Australia
- David J. Muscatello
- Margo Barr
- Sarah V. Thackway
- C. Raina MacIntyre
Publication date
July 2011
DOI Publisher
Centers for Disease Control and Prevention (CDC) Journal
Emerging Infectious DiseasesAbstract
To rapidly describe the epidemiology of influenza-like illness (ILI) during the 2009 winter epidemic of pandemic (H1N1) 2009 virus in New South Wales, Australia, we used results of a continuous population health survey. During July–September 2009, ILI was experienced by 23% of the population. Among these persons, 51% were unable to undertake normal duties for <3 days, 55% sought care at a general practice, and 5% went to a hospital. Factors independently associated with ILI were younger age, daily smoking, and obesity. Effectiveness of prepandemic seasonal vaccine was ≈20%. The high prevalence of risk factors associated with a substantially increased risk for ILI deserves greater recognition
Add to ORKG