Mycobacterium kansasii

Mycobacterium kansasii is a species of the phylum Actinobacteria (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus Mycobacterium.

Description

Mycobacterium kansasii is a non-tuberculous mycobacterium (NTM). It is photochromogenic, meaning it produces pigment when exposed to light. It is named after the state of Kansas where it was first isolated.

Pathogenesis

Mycobacterium kansasii is an opportunistic pathogen and can cause pulmonary disease resembling tuberculosis, lymphadenitis, and disseminated disease in immunocompromised patients. It is the second most common cause of NTM lung disease in the United States and is also frequently encountered in AIDS patients.

Treatment

The treatment of Mycobacterium kansasii involves a combination of antibiotics including rifampin, ethambutol, and isoniazid. The duration of treatment is typically 12 to 18 months.

See also

• Mycobacterium
• Non-tuberculous mycobacteria
• Opportunistic infection
• AIDS

References

Mycobacterium kansasii Resources
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