A lethal virus that causes diarrhoea and vomiting in pigs
has entered the United States and has been found in 14 states. With the
country’s US$97-billion pork industry standing to lose millions of
dollars in the event of a mass outbreak, scientists are working to track
the virus and prevent its spread, even as they try to understand how it
passed through biosecurity defences in the first place.
“How this virus got here, that’s the million-dollar
question,” says James Collins, director of the Veterinary Diagnostic
Laboratory at the University of Minnesota in St Paul.
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