title: Pandemic (H1N1) 2009 briefing note 1  Viruses resistant to oseltamivir  (Tamiflu) identified.
mesh_terms: D000998:Antiviral Agents / Q000494:pharmacology*; D004196:Disease Outbreaks / Q000517:prevention & control; D024882:Drug Resistance, Viral; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000187:drug effects*; D007251:Influenza, Human / Q000517:prevention & control / Q000821:virology*; D053139:Oseltamivir / Q000494:pharmacology*
chemical_list: D000998:Antiviral Agents; D053139:Oseltamivir