It is responsible for [[Infectious Necrotic Hepatitis|Infectious necrotic hepatitis/black disease]], which is an acute disease of sheep, and cattle. Hepatic necrosis is caused by exotoxins of ''C. novyi'' type B in liver damaged by ''Fasciola hepatica''. | It is responsible for [[Infectious Necrotic Hepatitis|Infectious necrotic hepatitis/black disease]], which is an acute disease of sheep, and cattle. Hepatic necrosis is caused by exotoxins of ''C. novyi'' type B in liver damaged by ''Fasciola hepatica''. |