Tuberculosis screening with tuberculin can be done for colds because colds do not affect the results of tuberculin tests, which are mainly done to prove whether the patient is infected with Mycobacterium tuberculosis and thus to do preliminary screening and judgment of patients with tuberculosis. The majority of colds are caused by bacterial and viral infections, common bacteria are mainly gram-positive bacteria, viruses are mainly caused by adenovirus, rhinovirus, influenza A virus, influenza B virus and other viruses, this time the tuberculin test will not affect the results, can be normal in the skin test after about 72 hours to observe the results of the skin test site, and can be combined with lung imaging for further analysis and The results of the skin test can be observed about 72 hours after the skin test.