Milkborne Brucella abortus infection.
D000818:Animals; D002003:Brucella abortus / Q000302:isolation & purification; D002006:Brucellosis / Q000453:epidemiology / Q000635:transmission*; D002417:Cattle; D004739:England; D006801:Humans; D008892:Milk / Q000382:microbiology*; D014852:Wales