On the value of tuberculin-negative herds in the detection of tuberculosis in human beings.
D000818:Animals; D035843:Biomedical Research; D002417:Cattle; D006801:Humans; D014373:Tuberculin; D014376:Tuberculosis; D014380:Tuberculosis, Bovine / Q000517:prevention & control*
D014373:Tuberculin
TUBERCULOSIS, BOVINE/prevention and control