Mycobacterial Diseases

Mycobacterial diseases are infectious diseases caused by bacteria belonging to the genus Mycobacterium. These organisms are characterized by a thick, waxy cell wall, making them resistant to many disinfectants and allowing them to survive in harsh environments. The most significant mycobacterial diseases in public health are Tuberculosis (TB) and leprosy, along with Nontuberculous Mycobacterial (NTM) infections. Tuberculosis primarily affects the lungs but can also involve other organs, spreading through airborne droplets and posing a major global health burden, especially in low- and middle-income countries. Leprosy mainly affects the skin and peripheral nerves, leading to disability if not treated early. Nontuberculous mycobacteria are commonly found in soil and water and can cause opportunistic infections, particularly in immunocompromised individuals. Control of mycobacterial diseases relies on early diagnosis, prolonged antimicrobial treatment, vaccination strategies (such as BCG for TB), public awareness, and strong health surveillance systems to reduce transmission and disease impact.