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Rates of hospitalisation for acute respiratory illness and the emergence of pandemic (H1N1) 2009 virus in the Hunter New England Area Health Service

Fatimah S Dawood, Craig B Dalton, David N Durrheim and Kirsty G Hope
Med J Aust 2009; 191 (10): 573-574.

To the Editor: Hospitalisation rates for seasonal influenza are highest among young children and people aged over 65 years.1-3 Calculation of laboratory-confirmed infection rates is difficult because influenza testing is not consistently performed.

Fatimah S Dawood, Epidemic Intelligence Service Officer1
Craig B Dalton, Public Health Physician2
David N Durrheim, Service Director2
Kirsty G Hope, Research Fellow2
1 Influenza Division, Centers for Disease Control and Prevention, Atlanta, Ga, USA.
2 Hunter New England Population Health, Newcastle, NSW.
Article References: 
Reference Text: 
Mullooly JP, Bridges CB, Thompson WW, et al. Influenza- and RSV-associated hospitalizations among adults. Vaccine 2007; 25: 846-855.
Reference Order: 
1
PubMed ID: 
17074423
Reference Text: 
Poehling K, Edwards K, Weinberg G, et al. The underrecognized burden of influenza in young children. N Engl J Med 2006; 355: 31-40.
Reference Order: 
2
PubMed ID: 
16822994
Reference Text: 
Simonsen L, Fukuda K, Schonberger LB, Cox NJ. The impact of influenza epidemics on hospitalizations. J Infect Dis 2000; 181: 831-837.
Reference Order: 
3
PubMed ID: 
10720501
Reference Text: 
NSW Health. H1N1 influenza 09: this winter flu season. (Follow link to weekly influenza epidemiology report.) http://www.emergency.health.nsw. gov.au/swineflu/index.asp (accessed Aug 2009).
Reference Order: 
4
PubMed ID: 
Reference Text: 
Australian Department of Health and Ageing. Australian influenza surveillance report. No. 11. 2009. http://www.healthemergency.gov.au/internet/healthemergency/publishing.nsf/Content/18D06BAC4644C98 DCA25763E00823442/$File/ozflu-no11-2009.pdf (accessed Sep 2009).
Reference Order: 
5
PubMed ID: 

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