what causes leprosy?
Mycobacterium leprae, also known as Hansenâs bacillus spirilly, mostly found in warm tropical countries, is a bacterium that causes leprosy. It is an intracellular, pleomorphic, acid-fast, pathogenic bacterium. M. leprae is an aerobic bacillus surrounded by the characteristic waxy coating unique to mycobacteria. In size and shape, it closely resembles Mycobacterium tuberculosis. Due to its thick waxy coating, M. leprae stains with a carbol fuchsin rather than with the traditional Gram ...