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...

Source: http://www.medicalnewstoday.com/releases/252005.php

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