Tuberculosis

Description

A general term for diseases caused by the tuberculous group of bacteria, Mycobacteria species, including Mycobacterium bovis, Mycobacterium tuberculosis,Mycobacterium avium.

Infection can be via inhalation of infective droplets, ingestion of contaminated feed or water, and occasionally via coitus or via milk.

The primary focus of infection is determined by the route of Bovine Tuberculosis

Avian Tuberculosis

• Grossly:
  • Yellowish spherical nodules
  • Caseous content
  • Fibrous capsule usually
• Histologically:
  • Granuloma
  • Central necrosis
  • Epitheliod and giant cells at periphery