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Abstract
Mesh: See more » Antigenic VariationAsia/epidemiologyEurope/epidemiologyHumansInfluenza A Virus, H1N1 Subtype/geneticsInfluenza A Virus, H3N2 Subtype/geneticsInfluenza, Human/epidemiologyInfluenza, Human/transmissionInfluenza, Human/virologyMicrobial Sensitivity TestsMiddle East/epidemiologyNorth America/epidemiologySeasons
Year: 2011 PMID: 21661271
Source DB: PubMed Journal: Wkly Epidemiol Rec ISSN: 0049-8114