Researchers identify new strain of deadly pig virus in US


U.S. researchers have identified a new strain of a hog disease that has wiped out millions of baby pigs, a sign the virus will keep mutating as producers work to contain it.

A third strain of Porcine Epidemic Diarrhea virus, or PEDv, was detected in a Minnesota hog herd and found to be at least as virulent as an original strain that emerged in the United States in early 2013, said Douglas Marthaler, assistant professor of veterinary population medicine at the University of Minnesota, on Monday.

Marthaler, who reported on the strain last month in a journal from the U.S. Centers for Disease Control and Prevention, believes the strain is a mutation of the original. A second, less-virulent strain had previously been identified.

The original strain may have mutated in response to increased immunity in herds, Marthaler said. It is also the nature of viruses like PEDv to evolve as they replicate.


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Source:  Reuters

Posted by Jami Howell

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