False positives may occur with the New Coronavirus Antigen Kit test, but the probability of false positives is usually low with standardized practice. False positives may occur in the New Crown Virus Antigen kit test due to a variety of factors, such as the presence of endogenous or exogenous interfering substances in the nasal specimen that lead to false positives in immunoassays, failure to wipe the nasal mucus clean when taking samples, acid in the nasal mucus that may lead to false positives, excessive titration of the specimen, and overtime reading of the results may lead to false positive results. If the new coronavirus antigen test is positive, regardless of whether there are respiratory, fever and other symptoms, it should be reported immediately to the community (village or town) where it is located and referred to a designated fever clinic or other medical institution for nucleic acid testing.