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Clostridium perfringens type A. Clostridium perfringens type A is implicated in ovine and caprine enterotoxemia in some parts of the world,2,35 but it is rarely responsible for intestinal diseases in sheep and goats in North America. Type A causes yellow lamb disease,43 a rare form of acute enterotoxemia in lambs.
Description and significance. Clostridium perfringens is a rod-shaped Gram-positive bacterium, which is a mesophile that has an optimal growing temperature of 37 C [2]. It is a non-motile pathogen that produces endospores.lostridium perfringens is a rod-shaped Gram-positive bacterium, which is a mesophile that has an optimal growing temperature of 37 C [2]. It is a non-motile pathogen that produces endospores.