Tuberculosis infection prevention and control

Tuberculosis (TB) is the second leading infectious cause of death worldwide, only surpassed by corona virus infection (COVID-19). It is mainly transmitted by the airborne route via droplet nuclei of 1-5 μm in diameter. The four key pillars of TB elimination are "Detect-Treat-Prevent-Build." There are enough evidences of healthcare-associated transmission of TB. Prevention of TB transmission in the healthcare settings is thus an important strategy. The goal of TB infection prevention and control (IPC) is to reduce the likelihood that populations may contract M.tuberculosis by using variety of strategies. The strategies include three levels hierarchy of controls. These include administrative controls, environmental controls, and respiratory protection. This review will discuss the various strategies for TB infection prevention and controls.