Invasive Haemophilus influenzae disease in Canada.
D000328:Adult; D000367:Age Factors; D002170:Canada; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005260:Female; D006193:Haemophilus influenzae; D006801:Humans; D007223:Infant; D008297:Male; D008583:Meningitis, Haemophilus / Q000453:epidemiology* / Q000401:mortality; D008875:Middle Aged