Tb Preventive Therapy (Tpt):

Approximately 5-15% of adults with latent TB infection (LTBI) develop active TB disease during their life. Provision of preventive treatment has proven itself as an effective intervention to avert the development of active TB disease, with efficacy ranging from 60% to 90%. The likelihood of progression of TB infection to active disease depends on bacterial, host, and environmental factors. In high TB prevalence and resource-limited settings such as Zimbabwe, the following four target populations