Mycobacterium tuberculosis

Precautions

Airborne Precautions (N95)

General Information

Acid fast bacillus

Latent disease believed to affect >20% of world population.

Prevalence higher in developing nations and mimics HIV/AIDS distribution

Pulmonary - cavitating pneumonia, upper lobe pneumonia, occasionally miliary

Extrapulmonary including lymph node disease, CNS infection, osteomyelitis (Potts), peritoneal and others

Airborne precautions for pulmonary disease

Caseating granulomas on pathology

MDR includes Rifampin and Isoniazid resistance