Weakly positive new crowns are discussed on a case-by-case basis; if the new crown is weakly positive due to a false positive, the patient cannot be diagnosed at this time. When the new coronavirus nucleic acid test is weakly positive, it is not necessarily the new coronavirus, and may be affected by factors such as failure of the test reagent and improper handling. 1. Failure of the test reagent: when the test reagent exceeds the expiration date or is damp, it may cause inaccurate detection, making the new crown weakly positive, and should be collected again to confirm the diagnosis. 2. Improper operation: When healthcare workers are not skillful in collecting new crown specimens, the result may be weakly positive. If the result is positive after a 24-hour interval, the diagnosis of novel coronavirus infection can be made. If the result is negative after a 24-hour interval, it is necessary to take into account the actual situation of the patient to decide whether or not to release the quarantine.