News & Perspective

Mar 02, 2009

Mar 02, 2009

H1N1 viruses gain Tamiflu resistance without losing fitness

(CIDRAP News) – Studies published today confirm that influenza A/H1N1 viruses have become widely resistant to oseltamivir (Tamiflu), the leading flu drug, without losing their ability to make people sick—thereby underlining the need for new antiviral drugs.