New York Times January 9, 2009
Major Flu Strain Found Resistant to Leading Drug, Puzzling Scientists
By DONALD G. McNEIL Jr.
Virtually all the dominant strain of flu in the United States this season is resistant to the leading antiviral drug Tamiflu, and scientists and health officials are trying to figure out why.
The problem is not yet a public health crisis because this has been a below-average flu season so far, and because the Tamiflu-resistant strain, one of three circulating, is still susceptible to other drugs. But infectious disease specialists are worried nonetheless.
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