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Table 4 Incidence of respiratory viruses per 1000 hospitalized children per year, 2008–2010

From: Incidence of viral respiratory infections in a prospective cohort of outpatient and hospitalized children aged ≤5 years and its associated cost in Buenos Aires, Argentina

  Hospitalized with at least one respiratory sign or symptom Severe acute lower respiratory infection Severe acute respiratory infection
  <6 6–23 24–71 All <6 6–23 24–71 All <6 6–23 24–71 All
RSV 24 13 1 6 13 11 0.4 4 13 10 0.7 4
Metapneumovirus 8 - - 1 5 - - 0.5 3 - - 0.2
Influenza 8 2 1 2 3 - 0.4 0.5 3 1 1 1
Adenovirus - 1 - 0.2 - 0.9 - 0.2 - 1 - 0.2
Parainfluenza - - - - - - - - - - - -
Rhinovirus 5 12 4 6 3 8 3 4 3 5 2 3
  1. The incidence of RSV (24/1000 children-years), influenza (8/1000 children-years) and human metapneumovirus (8/1000 children-years) illnesses was highest among hospitalized children aged <6 months and decreased among older children. In contrast, the incidence of rhinovirus was highest (12/1000 children-years) among those aged 6–23 months