What is directly observed therapy for latent TB infection (LTBI)?
Directly observed therapy for latent TB infection means that a health care worker observes a patient take his/her medications. It is a way of ensuring that the patient remembers to take his/her medication as prescribed. It usually works like this: a health care worker meets with the patient every time a dose of medication is scheduled and observes that the medication is swallowed. The health care worker and the patient decide together where to meet — at home, at work, or at some other location. Directly observed therapy for LTBI is the best way to make sure that TB is prevented and cured.