title: Respiratory viral coinfection among hospitalized patients with H1N1 2009 during the first pandemic wave in Brazil.
abstract: Influenza A coinfections with other respiratory viruses were investigated in 25.8% (41/159) of the samples from patients hospitalized in 2009 at our University Hospital. Out of the 41 influenza A cases, nine cases (21.9%) were coinfected with other viruses, with a similar frequency among children and adults (p = 0.47), and seasonal influenza cases were more prevalent than H1N1 2009 influenza virus. Adenovirus was the most frequently detected (4/9) among coinfected cases. Coinfection was not associated with higher morbidity or mortality (p = 0.75).
authors.affiliation: Division of Infections Diseases, Medicine Department, Universidade Federal de São Paulo, São Paulo, SP, Brazil. claricencamargo@gmail.com
authors.forename: Clarice
authors.initials: C
authors.lastname: Camargo
authors.forename: Sandra Baltazar
authors.initials: SB
authors.lastname: Guatura
authors.forename: Nancy
authors.initials: N
authors.lastname: Bellei
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D060085:Coinfection / Q000175:diagnosis / Q000453:epidemiology* / Q000821:virology; D005260:Female; D006785:Hospitals, University; D006801:Humans; D007223:Infant; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D058873:Pandemics; D012367:RNA, Viral / Q000032:analysis; D012141:Respiratory Tract Infections / Q000453:epidemiology / Q000821:virology; D012189:Retrospective Studies; D055815:Young Adult
chemical_list: D012367:RNA, Viral