discuss about the sensitivity and specificity of different tools employed for screening and diagnosis of TB 

Enlist various screening tools for TB and briefly mention its place in the screening process.

As per India’s Tuberculosis (TB) notification rule, each diagnostic laboratory, including private labs, must report diagnosed TB patient details to the National TB Elimination Program (NTEP) utilizing the digital surveillance system called Nikshay. As of March 2021, 20899 private laboratories are mapped in the Nikshay online portal for notification of diagnosed TB cases.

Private laboratories provide a variety of TB diagnostic services which includes:

Ayushman Bharat-Health and Wellness Centers (AB-HWCs) are being provided with anti-TB drugs, consumables and financial support under NTEP.

Uninterrupted supply of drugs and consumables and proper financial support forms the important components of TB elimination program. Under AB-HWC, many Primary Health Centres (PHCs) and Urban-PHCs will have microscopy centers which will need periodic supply of laboratory consumables. Similarly, under National TB Elimination Program (NTEP), TB treatment services are also decentralized, demanding uninterrupted supply of drugs.

The National Tuberculosis (TB) Elimination Program’s Tuberculosis Unit (TU) Drug Store is the functional unit of the TU that deals with the supply chain management of anti-TB drugs.