Is it useful for a healthy cloud to survive one day in advance?

Cannot be reused. The health cloud registration QR code cannot be reused. A QR code corresponds to an exam. After the exam, the QR code will be invalid and cannot be used again. It is recommended to register personal information in Health Cloud in advance. In addition to the Health Cloud App, please save the registration code with screenshots after registration to improve the sampling efficiency. Every time the Health Cloud is registered, the screenshot is saved to register the QR code, and you can use it if you want to prevent it from being boarded at the scene. Before displaying the QR code, please turn the frequency screen of the mobile phone to the brightest to avoid the possibility that the frequency screen is too dark to scan the code. Open the page of nucleic acid detection service and click Register Now. If you are not registered by yourself, please choose someone other than you and fill in the details of the registrant. Conditional can print out the registration QR code.