Pigs Look Healthy But Test Positive For Flu At Fairs; Flu Transmission Seen Between Pigs And Humans

More than 80 percent of pigs that tested positive for influenza A virus at Ohio county fairs between 2009 and 2011 showed no signs of illness, according to a new study. Ohio State University researchers tested 20 pigs each at 53 fair events over those three summers and found at least one flu-positive pig at 12 fairs - almost a quarter of fairs tested. The influenza strains identified in pigs in this study include H1N2 and H3N2 viruses - strains that have been circulating in pigs since 1998... via Health News from Medical News Today Read More Here..