Clostridium chauvoei is a bacterium that causes a disease known as blackleg in cattle and sheep. It is an anaerobic organism, meaning it thrives in low-oxygen environments, often found in soil and the intestines of healthy animals. The bacteria can enter the body through wounds or injuries, leading to muscle necrosis and gas production. Infected animals typically show symptoms such as swelling in the muscles, lameness, and fever. Clostridium chauvoei is part of a group of bacteria that can produce toxins, which contribute to the severity of the disease. Vaccination is an effective preventive measure against blackleg in livestock.