CDC warns of 'dual mutant' flu strain that could evade antiviral drugs: 'Need to closely monitor' - Fox News
- CDC warns of 'dual mutant' flu strain that could evade antiviral drugs: 'Need to closely monitor' Fox News
- Study details reduced Tamiflu susceptibility in H1N1 flu cases University of Minnesota Twin Cities
- Drug-resistant "dual mutant" flu strains now being tracked in U.S., CDC says CBS News
- CDC: Drug-resistant 'dual mutant' flu strains detected in US WXYZ 7 Action News Detroit
- CDC tracking drug-resistant flu strains The Hill