Mexico -A/H1N1 2009 influenza virus present in pigs
http://www.oie.int/wahis/public.php?page=single_report&pop=1&reportid=8741
14-Dec-2009 (16 years 5 months 24 days ago)The OIE has reported on a source of 2009 H1N1 flu detected at the end of April 2009 in a swine herd situated in the municipality of Colon, in the Mexican state of Queretaro. The outbreak was considered as finished during the month of May 2009.
The source was detected as a result of the reinforcement in epidemiologic vigilance in Mexico’s porciculture following the beginning of the pandemic caused by H1N1 in humans.