[Preliminary epidemiological research on leptospirosis in swine and in workers employed in swine breeding and slaughtering. I].
D000818:Animals; D001947:Breeding; D004651:Employment; D016021:Epidemiologic Studies; D007922:Leptospirosis / Q000453:epidemiology*; D008462:Meat-Packing Industry; D009784:Occupational Diseases; D013552:Swine
LEPTOSPIROSIS/epidemiology; MEAT-PACKING INDUSTRY; OCCUPATIONAL DISEASES