Peptostreptococcus is a genus of anaerobic, Gram-positive, non-spore forming bacteria. The cells are small, spherical, and can occur in short chains, pairs or individually. Peptostreptococcus are slow-growing bacteria with increasing resistance to antimicrobial drugs.

Pathogenesis

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Peptostreptococcus species are commensal organisms in humans, living predominantly in the mouth, skin, gastrointestinal, and urinary tract, and compose a portion of the bacterial gut flora. Under immunosuppressed or traumatic conditions these organisms can become pathogenic, as well as septicemic. Peptostreptococcus can cause brain, liver, breast, and lung abscesses, as well as generalized necrotizing soft tissue infections.

References

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External links

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• Peptostreptococcus infections from eMedicine.

Bacteriology