Antigen testing generally refers to neo-coronavirus antigen testing. Improper handling, vaccination, etc. can lead to false-positive test results. False-positive results can be caused by improper handling of the NeoCollins antigen test, such as using too much of the test, not using the kit after it has been opened, or reading the test too early or too late in the day. False-positive results may also result if the test is performed within 48 hours of vaccination. In addition to the above, the presence of interfering substances in the specimen may cause false-positive test results if the body is infected with other microorganisms, or if the body is taking certain medications or foods. False-positive results may also occur in some populations due to the mixing of reagents from different manufacturers, sampling swabs, or the use of ordinary swabs instead of matching swabs. It is recommended that people follow the instructions strictly for the new crown antigen test, and those with symptoms such as dry cough and fever should be reported to the community for early diagnosis and timely treatment.