Preliminary descriptive epidemiology of a large school outbreak of influenza A(H1N1)v in the West Midlands, United Kingdom, May 2009

Collective Health Protection Agency West Midlands H1N1v Investigation Team

doi:10.2807/ese.14.27.19264-en

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Preliminary descriptive epidemiology of a large school outbreak of influenza A(H1N1)v in the West Midlands, United Kingdom, May 2009
Collective Health Protection Agency West Midlands H1N1v Investigation Team^1,2
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Affiliations: ¹ West Midlands Regional Epidemiology Unit, Health Protection Agency, United Kingdom ² The members of the team are listed at the end of the article

Correspondence:
Collective Health Protection Agency West Midlands H1N1v Investigation Team
gillian.smith hpa.org.uk
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Citation style for this article: Health Protection Agency West Midlands H1N1v Investigation Team Collective. Preliminary descriptive epidemiology of a large school outbreak of influenza A(H1N1)v in the West Midlands, United Kingdom, May 2009. Euro Surveill. 2009;14(27):pii=19264. https://doi.org/10.2807/ese.14.27.19264-en Received: 30 Jun 2009

Abstract

This report describes the preliminary results from the investigation of a large school outbreak of influenza A(H1N1)v in Birmingham, United Kingdom in May 2009, when influenza A(H1N1)v was confirmed in 64 of 175 (36%) symptomatic pupils and members of staff. Initial findings in this study suggest that the symptoms were mild and similar to those of seasonal influenza, with an illness attack rate of nearly one third.