Actinobacillus actinomycetem comitans

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A carbon dioxide-requiring (capnophilic), microaerophilic, Gram-negative rod-shaped bacterium associated with chronic periodontitis. Toxins released by these bacteria produce an inflammatory response in the gingival tissues with a consequent increase in gingival crevicular fluid flow. Virulence factors include collagenese, endotoxin, IgA proteases making it capable of evading normal host response and destroying connective tissue and bone.

Subjects: Dentistry.

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