A positive T-cell test for tuberculosis infection indicates the presence of tuberculosis infection or a history of previous infection. The T-cell test for tuberculosis infection is an interferon release test for T lymphocytes. A positive test result indicates the presence of Mycobacterium tuberculosis in the sample provided by the subject, which may indicate that the subject has a current Mycobacterium tuberculosis infection, or that there was a previous Mycobacterium tuberculosis infection that caused the formation of localized cellular tissue remnants. Usually, after a positive T-cell test result for tuberculosis infection, further sputum culture or X-ray examination is still needed to determine the number of viruses in the body and the specific site of infection, and thus whether the person is in the active stage of tuberculosis infection. If the TB infection is in the active stage, anti-tuberculosis treatment should be carried out as soon as possible. After a positive T-cell test result for tuberculosis infection, one should go to the hospital in time for further diagnosis and cooperate with the doctor for early treatment.