title: The epidemiology of influenza in children hospitalized in Canada, 2004-2005, in Immunization Monitoring Program Active (IMPACT) centres.
mesh_terms: D000293:Adolescent; D002170:Canada / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009980:Influenza A virus; D009981:Influenza B virus; D007252:Influenza Vaccines / Q000009:adverse effects; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D011159:Population Surveillance
chemical_list: D007252:Influenza Vaccines