title: Human listeriosis surveillance in Canada--1987.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002170:Canada; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008088:Listeriosis / Q000175:diagnosis / Q000453:epidemiology* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009790:Occupations; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis / Q000453:epidemiology; D012621:Seasons; D012737:Sex Factors