For the vaccination of healthy, pregnant swine as an aid in passive maternal immunization of their pigs against neonatal diarrhea caused by C1 perfringens Type C & E. coli bacteria. Dosage: Administer 2 ml IM or SQ to pregnant sows and gilts. 3 weeks apart during last half of pregnancy with second dose given at least 2 weeks prefarrow. 21 day withdrawal.