Case-control study of listeriosis in England and Wales: progress report.
D003430:Cross-Sectional Studies; D004739:England / Q000453:epidemiology; D005260:Female; D005516:Food Microbiology; D006801:Humans; D015994:Incidence; D008088:Listeriosis / Q000453:epidemiology* / Q000635:transmission; D008297:Male; D011159:Population Surveillance; D011247:Pregnancy; D014852:Wales / Q000453:epidemiology