title: Boars as carriers of leptospires of the Australis serogroup on farms with an abortion problem.
mesh_terms: D000034:Abortion, Veterinary / Q000209:etiology; D000818:Animals; D002353:Carrier State / Q000662:veterinary*; D005260:Female; D007919:Leptospira / Q000145:classification; D007922:Leptospirosis / Q000635:transmission / Q000662:veterinary*; D008297:Male; D011247:Pregnancy; D013552:Swine / Q000382:microbiology*; D013553:Swine Diseases / Q000635:transmission*