Epidemiology of fatal cases associated with pandemic H1N1 influenza 2009

L Vaillant; G La Ruche; A Tarantola; P Barboza; for the epidemic intelligence team at InVS

doi:10.2807/ese.14.33.19309-en

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Epidemiology of fatal cases associated with pandemic H1N1 influenza 2009
L Vaillant¹ , G La Ruche¹ , A Tarantola¹ , P Barboza¹ , for the epidemic intelligence team at InVS^1,2
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Affiliations: ¹ French Institute for Public Health Surveillance (Institut de Veille Sanitaire, InVS), St Maurice, France ² The members of the epidemic intelligence team at InVS are listed at the end of the article

Correspondence:
A Tarantola
a.tarantola invs.sante.fr
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Citation style for this article: Vaillant L, La Ruche G, Tarantola A, Barboza P, for the epidemic intelligence team at InVS. Epidemiology of fatal cases associated with pandemic H1N1 influenza 2009. Euro Surveill. 2009;14(33):pii=19309. https://doi.org/10.2807/ese.14.33.19309-en Received: 07 Aug 2009

Abstract

This article describes the characteristics of 574 deaths associated with pandemic H1N1 influenza up to 16 July 2009. Data (except from Canada and Australia) suggest that the elderly may to some extent be protected from infection. There was underlying disease in at least half of the fatal cases. Two risk factors seem of particular importance: pregnancy and metabolic condition (including obesity which has not been considered as risk factor in previous pandemics or seasonal influenza).