The H1N1 swine flu virus that scientists now believe may have caused up to 579,000 deaths worldwide in 2009 is developing resistance to oseltamivir - trade name Tamiflu - the treatment drug of choice. For relative articles Google "swine flu resistance".

Hi Teresa: I know the efficacy of Tamiflu has been questioned and the debate rages on with health officials demanding studies to prove claims by Roche but I'm not aware the controversy has been definitively resolved. Where can I find that information?