Infection of the small intestine by type A strains of C perfringens is a milder condition and more rare compared to disease caused by C perfringens type C (see Intestinal Diseases in Pigs: 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 to those of C perfringens type C enteritis. Diagnosis, treatment and control are as for C perfringens type C enteritis.
Last full review/revision March 2012 by D. L. Hank Harris, DVM, PhD