title: Hemagglutinin 222 variants in pandemic (H1N1) 2009 virus.
authors.forename: Maria Beatrice
authors.initials: MB
authors.lastname: Valli
authors.forename: Marina
authors.initials: M
authors.lastname: Selleri
authors.forename: Silvia
authors.initials: S
authors.lastname: Meschi
authors.forename: Paola
authors.initials: P
authors.lastname: Zaccaro
authors.forename: Donatella
authors.initials: D
authors.lastname: Vincenti
authors.forename: Eleonora
authors.initials: E
authors.lastname: Lalle
authors.forename: Maria Rosaria
authors.initials: MR
authors.lastname: Capobianchi
authors.forename: Stefano
authors.initials: S
authors.lastname: Menzo
mesh_terms: D019943:Amino Acid Substitution; D003062:Codon / Q000235:genetics; D014644:Genetic Variation; D006389:Hemagglutinins, Viral / Q000235:genetics*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics*; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology*; D007558:Italy / Q000453:epidemiology; D008969:Molecular Sequence Data; D009154:Mutation / Q000235:genetics; D058873:Pandemics; D010802:Phylogeny
chemical_list: D003062:Codon; D006389:Hemagglutinins, Viral