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==Introduction==
''Clostridium novyi'' is a gram-positive, obligate anaerobic bacteria of the class [[:Category:Clostridium species|''Clostridia'']].
''Clostridium novyi'' is a gram-positive, obligate anaerobic bacteria of the class [[:Category:Clostridium species|''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 due to subcutaneous venous congestion, and causes [[Gas Gangrene|gas gangrene]] and myositis.
It causes dark discoloration of skin due to subcutaneous venous congestion, and causes [[Gas Gangrene|gas gangrene]] and 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. It produces a necrotising lethal alpha toxin.
It may be involved in cutaneous lesions and causes big head in rams - oedema of subcutaneous tissues of the head, neck and cranial thorax. It produces a necrotising lethal alpha toxin.
{{Learning
|literature search = [http://www.cabdirect.org/search.html?q=%28title%3A%28%22Clostridium+novyi%22%29%29 ''Clostridium novyi'' publications]
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[[Category:Histotoxic_Clostridia]][[Category:Cattle Bacteria]][[Category:Sheep Bacteria]]
[[Category:Histotoxic_Clostridia]][[Category:Cattle Bacteria]][[Category:Sheep Bacteria]]