Flu Viruses Gaining Resistance, Study Confirms - Yahoo! News
Certain influenza virus strains are developing increasing drug resistance and greater ability to spread, a new study warns.
American and Canadian researchers confirmed that resistance to the two approved classes of antiviral drugs can occur in several ways and said this dual resistance has been on the rise over the past three years.
The team analyzed 28 seasonal H1N1 influenza viruses that were present in five countries from 2008 to 2010 and were resistant to both M2 blockers (adamantanes) and neuraminidase inhibitors (NAIs), including oseltamivir and zanamivir.
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