date:May 29, 2014
es not pose a risk to human health and is not a food safety issue, according to the USDA.
REASONS FOR RE-INFECTION UNCLEAR
Veterinarians and others have been unable to predict the duration of immunity to PEDv in hogs following exposure, in part because the disease had never been in the United States before last year.
Ackerman had thought hogs would have a natural immunity to PEDv for three years after being infected because that is the case for a similar disease called Transmissible Gastroent