2. Secondly, click the vaccination information in COVID-19, and click the feedback below.
3. Click on the question of nucleic acid test records, and click on why the nucleic acid test records are not updated/have no data/are not displayed? , just check the reply. Health code is a personal two-dimensional code based on actual real data, which is generated by citizens or people who have returned to work on their own online declaration and background audit.