Swine Flu Mutation: New Strain Found In Europe; Drug Resistant And Harsher Symptoms

Mutation Found In Swine Flu Strain In Europe; Drug Resistant and Harsher Symptoms

European public health officials are investigating a handful of swine flu infections in Norway and Wales in which the virus mutated to a form that's more severe or less sensitive to drug treatment.

Five patients at a hospital in Wales contracted swine flu that resisted treatment with Roche Holding AG's Tamiflu, and three more infections are still being analyzed, the U.K. Health Protection Agency said today.

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