Study documents increasing prevalence of influenza A resistance to drug oseltamivir

Influenza A viruses (H1N1 subtype) that are resistant to the drug oseltamivir circulated widely in the U.S. during the 2007-2008 influenza season, with an even higher prevalence of drug resistance during the current 2008-2009 influenza season, according to a study to be published in the 11 March issue of JAMA, and being released early online because of its public health importance...

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