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. 2011 Feb 11:3:RRN1209.
doi: 10.1371/currents.RRN1209.

Prevalence and risk factors for swine influenza virus infection in the English pig population

Alexander Mastin  1 , Pablo Alarcon, Dirk Pfeiffer, James Wood, Susanna Williamson, Ian Brown; COSI Consortium; Barbara Wieland
Affiliations

Prevalence and risk factors for swine influenza virus infection in the English pig population

Alexander Mastin et al. PLoS Curr. .

Abstract

Infection of pigs with influenza viruses is a cause of considerable economic loss for pig farmers as well as a potential human health concern - as evidenced by the identification of genetic material derived from swine-adapted influenza viruses in an novel strain of H1N1 influenza virus in 2009. A study was conducted investigating the prevalence of influenza virus infection in a selection of 143 English pig herds between April 2008 and April 2009, which found evidence of recent virus circulation in over half of these herds (n=75). Farms which were sampled in the Summer months were found to have lower odds of recent virus circulation, as were farms containing pigs kept in straw yards. Additionally, farms containing pigs kept indoors and farms containing high numbers of finisher pigs per water space were found to have higher odds of recent virus circulation. It is hoped that further studies will expand on these findings, and may allow targeting of surveillance for influenza viruses in the English pig population.

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References

    1. Alexander DJ. Ecological aspects of influenza A viruses in animals and their relationship to human influenza: a review. J R Soc Med. 1982 Oct;75(10):799-811. Review. - PMC - PubMed
    1. Loeffen WL, Hunneman WA, Quak J, Verheijden JH, Stegeman JA. Population dynamics of swine influenza virus in farrow-to-finish and specialised finishing herds in the Netherlands. Vet Microbiol. 2009 May 28;137(1-2):45-50. Epub 2009 Jan 6. - PubMed
    1. Bennett R. The 'direct costs' of livestock disease: The development of a system of models for the analysis of 30 endemic livestock diseases in Great Britain. Journal of Agricultural Economics 2003; 54 (1): 55-71.
    1. Bennett R, Ijpelaar J. Updated estimates of the costs associated with thirty four endemic livestock diseases in Great Britain: A note. Journal of Agricultural Economics 2005; 56(1): 135-144
    1. Olsen CW, Brammer L, Easterday BC, Arden N, Belay E, Baker I, Cox NJ. Serologic evidence of H1 swine Influenza virus infection in swine farm residents and employees. Emerg Infect Dis. 2002 Aug;8(8):814-9. - PMC - PubMed