Microbiology Bacteriology f8799e45 Bacilli Calmette Guerin contains the avirulent strains of A Human tubercle bacilli B An tubercle bacilli C Bovine tubercle bacilli D Atypical mycobacteria High-Yield Explanation BCG is produced from strain Mycobacterium bovis Ref: Harrison&;s Principles of Internal Medicine; 19th edition; Chapter 202; Tuberculosis