Some dogs in China carry a mixed bag of influenza viruses. The discovery raises the possibility that dogs may be able to pass the flu to people, perhaps setting off a pandemic. About 15 percent of pet dogs that went to the vet because of respiratory infections
carried flu viruses often found in pigs, researchers report June 5 in
mBio. Of the virus strains detected, three have recombined in dogs to form new varieties. That mixing generates genetic diversity in the viruses that makes them potentially a pandemic threat, says study coauthor Adolfo García-Sastre, a virologist who directs the Global Health and Emerging Pathogens Institute of the Icahn School of Medicine at Mount Sinai in New York City.
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