title: The impact of the H1N1 influenza pandemic on clinical presentations and viral epidemiology of acute respiratory infection in preschool children in Brazil.
abstract: We assessed the impact of the H1N1 influenza pandemic on acute respiratory infection in young children from low-income families in Brazil. Influenza (specifically H1N1) detection in acute respiratory infection quintupled during the pandemic and, during its peak, it was associated with 30% of all acute respiratory infection visits to the emergency department. H1N1 was also associated with increased risk of hospitalization and coinfection.
authors.affiliation: Institute of Child Health, Alder Hey Children's Hospital, Liverpool, United Kingdom.
authors.forename: David W
authors.initials: DW
authors.lastname: Fawkner-Corbett
authors.forename: Maria Carmo M B
authors.initials: MC
authors.lastname: Duarte
authors.forename: Katie
authors.initials: K
authors.lastname: Rose
authors.forename: Angela
authors.initials: A
authors.lastname: Fonceca
authors.forename: Patricia
authors.initials: P
authors.lastname: Bezerra
authors.forename: Mark
authors.initials: M
authors.lastname: Hopkins
authors.forename: Murilo
authors.initials: M
authors.lastname: Britto
authors.forename: Luis E
authors.initials: LE
authors.lastname: Cuevas
authors.forename: Jailson B
authors.initials: JB
authors.lastname: Correia
authors.forename: Paul Stephen
authors.initials: PS
authors.lastname: McNamara
mesh_terms: D001938:Brazil / Q000453:epidemiology; D002675:Child, Preschool; D060085:Coinfection / Q000453:epidemiology / Q000821:virology; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007251:Influenza, Human / Q000453:epidemiology* / Q000473:pathology*; D008297:Male; D058873:Pandemics; D011446:Prospective Studies; D012141:Respiratory Tract Infections / Q000453:epidemiology* / Q000473:pathology*; D014780:Viruses / Q000145:classification* / Q000302:isolation & purification*