The 12weeks directly observed therapy (DOT) regimen for latent tuberculosis (TB) infection

What is latent tuberculosis infection (LTBI)

Persons with latent TB infection are not infectious and cannot spread TB infection to others. They are usually well and do not have symptoms. They are infected with M. tuberculosis germs, but do not have the TB disease. They may develop TB disease if they do not receive treatment for LTBI. LTBI may be diagnosed through a blood test commonly called Quantiferon, or a skin test commonly called PPD (Purified Protein Derivative)