http://wwwnc.cdc.gov/eid/article/11/11/05-0608_article.htm
http://www.cfsph.iastate.edu/Factsheets/pdfs/highly_pathogenic_avian_influenza.pdf
http://www.thepoultrysite.com/articles/1749/global-poultry-trends-asian-chicken-meat-production-trends-2010
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