Which of the following statements are true for bovine tuberculosis?
(A) Itis an acute as well as zoonotic disease of bovines.
(B) Itis caused by Mycobacterium bovis
(C) It is charcaterized by formation of pyogranulamatous lesions
(D) It is characterized by formation of caseo-calcifying granulomas in the affected organs.
- Pathology of Tuberculosis in Cattle:
- It is a chronic debilitating granulomatous disease, NOT acute (Statement A is False).
- Caused primarily by Mycobacterium bovis (acid-fast bacillus) (True).
- Lesions are caseating granulomas, not pyogranulomatous (False).
- Pathognomonic lesion is the tubercle—a chronic caseo-calcifying granuloma featuring central caseous necrosis, dystrophic calcification, epithelioid cells, Langhans giant cells, and peripheral fibrous encapsulation (True).
- nalysis:
- Statements (B) and (D) are correct. Hence, Option 4 ((B) and (D) only) is correct.