Measles surveillance in 1988.
D000293:Adolescent; D000328:Adult; D002170:Canada / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008457:Measles / Q000453:epidemiology*; D011159:Population Surveillance; D012621:Seasons