| cessation of trichinella spiralis transmission among scavenging mammals after the removal of infected pigs from a poorly managed farm: implications for trichinae transmission in the us. | pigs infected with the zoonotic parasite trichinella spiralis were detected on a farm in maryland during an animal welfare investigation. sera and/or tissues were collected from 49 pigs and three pig carcasses (7 weeks of age to adult, mixed sex). the tissues were tested for the presence of t. spiralis muscle larvae (ml) by tissue digestion, and the sera were tested for the presence of anti-trichinella antibodies by elisa. seventeen of 50 (34%) pigs were infected with t. spiralis based on tissue ... | 2010 | 19968844 |