(CIDRAP News) Scientists who analyzed 67 H5N1 avian influenza viruses from across Africa report that the viruses fall into three distinct sublineages, or families, and that some have mutations that make them resistant to antiviral drugs.
(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.