Contaminated milk; clinical aspects of the paratyphoid B epidemic in Lancaster County.
D000818:Animals; D001940:Breast; D003611:Dairy Products; D058872:Epidemics; D006801:Humans; D008892:Milk / Q000382:microbiology*; D010284:Paratyphoid Fever / Q000453:epidemiology*
MILK/microbiology; PARATYPHOID FEVERS/epidemiology