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Clostridium perfringens Type A Enteritis in Pigs

By D. L. Hank Harris, DVM, PhD, Professor, Department of Animal Science, Department of Veterinary Diagnostics and Production Animal Medicine, Iowa State University

Infection of the small intestine by type A strains of C perfringens is a milder condition and rarer than disease caused by C perfringens type C (see Clostridium perfringens Type C Enteritis in Pigs). Suckling and sometimes weaned pigs are affected and exhibit yellow-colored feces with mucous and flecks of blood. Growth rates are suppressed but with low to no mortality. The lesions at necropsy are milder and blood-free as compared with those of C perfringens type C enteritis. Diagnosis, treatment, and control are as for C perfringens type C enteritis.