The T-spoT test is called T-cell spot test for tuberculosis infection in Chinese. The T-spoT test is a test that detects the activity of gamma interferon to infer whether the body is infected with Mycobacterium tuberculosis. The test is rapid, sensitive and specific, with a higher sensitivity than the traditional PPD test, and the results are available in only 24 hours. The results are not affected by BCG vaccination, immunocompromised status, or infection with other environmental mycobacteria. Therefore, T-spoT is clinically indicated for patients with an unclear diagnosis or high suspicion of Mycobacterium tuberculosis infection.