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''Clostridium novyi'' is a gram-positive, obligate anaerobic bacteria of the class ''clostridia''.   

''Clostridium novyi'' is a gram-positive, obligate anaerobic bacteria of the class ''clostridia''.   

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''

It causes dark discoloration of skin caused by subcutaneous venous congestion, and causes [[Necrosis - Pathology#Gas Gangrene|gas gangrene]] and [[Muscles Inflammatory - Pathology#Gas gangrene|myositis]].

It causes dark discoloration of skin caused by subcutaneous venous congestion, and causes [[Necrosis - Pathology#Gas Gangrene|gas gangrene]] and [[Muscles Inflammatory - Pathology#Gas gangrene|myositis]].

It may be involved in [[Bacterial skin infections - Pathology#Systemic bacterial infections|cutaneous lesions]] and causes big head in rams - oedema of subcutaneous tissues of the head, neck and cranial thorax; necrotising lethal alpha toxin

It may be involved in [[Bacterial skin infections - Pathology#Systemic bacterial infections|cutaneous lesions]] and causes big head in rams - oedema of subcutaneous tissues of the head, neck and cranial thorax; necrotising lethal alpha toxin