On the occurrence of Trichinella spiralis in pork sausage available in Iowa (1953-60).
D000818:Animals; D006801:Humans; D007484:Iowa; D008460:Meat; D013552:Swine / Q000469:parasitology; D017160:Trichinella spiralis; D014235:Trichinellosis / Q000662:veterinary*
MEAT; SWINE/parasitology; TRICHINOSIS/veterinary