An abnormal neocrown antigen is not always diagnostic. Neo-crown antigen testing can be used as a screening tool for specific populations, but it cannot completely replace nucleic acid testing. Also, an abnormal neocoronavirus antigen test does not necessarily mean that a person is infected with the new coronavirus, as some people may have a “false positive” result due to improper handling or expiration of the kit. People with abnormalities of the new coronavirus antigen need to go to a regular hospital for further nucleic acid testing. If the nucleic acid test results are positive several times, the diagnosis of infection with the new coronavirus will be made. To prevent infection with novel coronavirus, protective measures should be taken in daily life, such as wearing masks and avoiding close contact with others. It is recommended to seek medical attention once symptoms such as fever and dry cough appear in the body, so as not to delay treatment.