Photo: Flu-Drug Use Could Promote Virus Resistance, Study Finds



A colorized image shows the H5N1 strain of the avian flu virus (gold) grown in dog kidney cells (green). New computer models show that widespread use of antiviral drugs to combat a bird flu pandemic will increase the chances of the virus mutating into a resistant form.



Photograph by C. Goldsmith/U.S. Centers for Disease Control

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