Tamiflu Resistance in 2% of H1N1 Flu Cases Globally, Study Finds
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Tamiflu-resistant swine flu is turning up in about 2 percent of cases globally, researchers in Australia found, raising the risk that Roche Holding AG’s pill may become ineffective in fighting the pandemic H1N1 virus.
Drug resistance in the flu strain that sparked the 2009 influenza pandemic is being detected in virus samples collected from patients who haven’t been treated with Tamiflu, suggesting the mutant germs have spread, said Aeron Hurt, head of antiviral susceptibility research at the World Health Organization’s Collaborating Centre for Reference and Research on Influenza in Melbourne.