In the case of the New Crown Nucleic Acid Test, for example, the nucleic acid test report will be displayed on the cell phone, usually at the health code versus the electronic version of the nucleic acid test report. Generally, if the nucleic acid test is positive, the color of the health code will change from green to red or purple, depending on the policy of the region where the test is performed. In addition, the electronic version of the nucleic acid test report can also be accessed through cell phones by logging in to the WeChat public number of the local healthcare service platform as well as small programs, so a positive nucleic acid test result can be accessed on the cell phone. If the nucleic acid test is positive, the tester should immediately contact the local epidemic prevention and control department to report the situation and stay at home in quarantine to wait for relevant treatment.