A purified protein derivative (PPD) skin test is a test that determines if you have tuberculosis (TB). TB is a serious infection, usually of the lungs, caused by the bacteria Mycobacterium ...

If you have experienced tuberculosis (TB) exposure or have symptoms, Medicare may cover a purified protein derivative (PPD) test. If you don’t have symptoms and haven’t experienced TB exposure ...

Citation: Individuals of all ages with positive skin or blood test should receive preventive treatment for TB, new study says (2024, May 8) retrieved 29 May 2025 from https://medicalxpress.com ...