Mycobacterium Tuberculosis - can affect almost any organ

Infects 1/3 of the world’s population - most common infectious cause of death

Reactivation of the disease may occur later in life

Causes/Factors

  • Inhalation of infected respiratroy droplets, bacilli lodge in alveoli & multiply
  • Depending on host immune system - the infection with either become quiescent or progress/disseminainate

Symptoms

  • 90% of primary infections are asymptomatic
  • Chronic productive cough
  • Weight loss
  • Night sweats
  • Fever

Signs

Diagnostic Tests

  • Chest XR
  • Sputum culture
  • Interferon gamma release assays
  • Tuberculin skin test

Management

  • 2 antibiotics (isoniazid and rifampicin) for 6 months.
  • and 2 other drugs that ihnc what they do

Combined with chemotherapy for several months?

Complications/red Flags

  • Notifiable disease & contact tracing in place