Mycobacterium tuberculosis

General Information

Acid fast bacillus

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

Prevalence higher in developing nations and mimics HIV/AIDS distribution


  • Cavitating pneumonia

  • Upper lobe pnuemonia

  • Occasionally miliary


  • Lymph node disease

  • CNS infection

  • Osteomyelitis (Potts)

  • Peritoneal

  • Others

Airborne precautions for pulmonary disease.

Caseating granulomas on pathology.

MDR includes rifampin and isoniazid resistance.

See the BCCDC for up to date information in pregnancy