title: The ongoing battle against influenza: Drug-resistant influenza viruses: why fitness matters.
authors.affiliation: World Health Organization Collaborating Centre for Reference and Research on Influenza, North Melbourne, Victoria, Australia. Anne.Kelso@influenzacentre.org
authors.forename: Anne
authors.initials: A
authors.lastname: Kelso
authors.forename: Aeron C
authors.initials: AC
authors.lastname: Hurt
mesh_terms: D000998:Antiviral Agents / Q000494:pharmacology* / Q000627:therapeutic use; D024882:Drug Resistance, Viral / Q000235:genetics*; D056084:Genetic Fitness; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000187:drug effects* / Q000235:genetics* / Q000472:pathogenicity; D007251:Influenza, Human / Q000188:drug therapy* / Q000821:virology; D053139:Oseltamivir / Q000494:pharmacology / Q000627:therapeutic use; D053243:Zanamivir / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D000998:Antiviral Agents; D053139:Oseltamivir; D053243:Zanamivir