This is the regular flu, not the avian flu. Tamiflu and zanamivir (Relenza) are still ok to use. Viruses are mutating and becoming resistant.
http://seattletimes.nwsource.com/APWires/headlines/D8F4N380A.htmlATLANTA — The government, for the first time, is urging doctors not to prescribe two antiviral drugs commonly used to fight influenza because of concerns about drug resistance, officials announced Saturday. The Centers for Disease Control and Prevention said the recommendation covers the drugs rimantadine and amantadine for the 2006 flu season.
Results of recent lab tests on influenza samples showed that the predominant strain this season - the H3N2 influenza strain - was resistant to the drugs, the agency said. "Clinicians should not use rimantadine and amantadine ... because the drugs will not be effective," said CDC director Dr. Julie Gerberding. The two drugs have been used for years to combat type-A influenza.
Gerberding said the lab data, which CDC scientists had been analyzing since Friday, surprised health officials and the health agency rushed to get the word out Saturday. "I don't think we were expecting it to be so dramatic so quickly this year," Gerberding said. "We just didn't feel it was responsible to wait three more days during a holiday weekend to let clinicians know."
CLIP
Each year, the flu kills about 36,000 people, and some 200,000 are hospitalized because of it in the United States, the CDC said. As of Dec. 31, the latest CDC data available, flu activity was only considered widespread in seven U.S. states, mainly in the Southwest and West: Texas, New Mexico, Arizona, Colorado, Utah, Nevada and California.
more at link