title: Epidemiological summary of pandemic influenza A (H1N1) 2009 virus - Ontario, Canada, June 2009.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D007223:Infant; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D009864:Ontario / Q000453:epidemiology; D011159:Population Surveillance; D014611:Vaccination; D055815:Young Adult