Patient's question:
NoDoctor's answer:
Hello, the PPD test is an indicator to determine if there is a Mycobacterium tuberculosis infection in the body and whether there are antibodies against it. A negative result indicates no infection and no antibodies present, which may require vaccination with BCG. A positive result suggests possible previous infection with Mycobacterium tuberculosis or vaccination with BCG, indicating the presence of antibodies, which is also a normal phenomenon. Generally, a strong positive result may indicate a Mycobacterium tuberculosis infection.