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Epidemiology of Influenza-like Illness during Pandemic (H1N1) 2009, New South Wales, Australia
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Jul 2011
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Source: Emerg Infect Dis. 17(7):1240-1247.
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Alternative Title:Emerg Infect Dis
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Description: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.
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Volume:17
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Issue:7
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