The U.S. Department of Agriculture says at least one pig from Minnesota has tested positive for the H1N1 virus, the first case of a pig contracting the virus in the United States.

Agriculture Secretary Tom Vilsack said in a statement Monday that USDA officials have begun to reach out to international organizations and are emphasizing that H1N1, also known as swine flu, cannot be contracted by eating pork products.

The USDA's National Veterinary Services Laboratories confirmed
the presence of H1N1 after an initial test suggested that as many
as three pigs may have had the virus.

USDA officials say the infection of a so-called show pig doesn't indicate an infection of commercial herds because show pigs are in
separate segments of the swine industry.

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