Fusobacterium necrophorum subspecies necrophorum

**Semantic type:** Bacterium

**Definition:** A subspecies of anaerobic, Gram-negative, rod shaped bacteria in the phylum Fusobacteria. This subspecies is non-spore forming, lipase and indole positive, catalase negative, produces hydrogen sulfide, does not hydrolyze esculin or starch, does not reduce nitrate, and does not produce acid from carbohydrates. F. necrophorum subsp. necrophorum, also know as biovar A, is found in the intestinal tract of animals but is known to cause infections in both animals and humans.

**Synonyms:** - Fusobacterium necrophorum subsp. necrophorum