Can I use the international epidemic prevention health code once?

The international epidemic prevention health code can only be used once. Health information must be filled in daily and valid within 24 hours after each filling. The system will record the user's continuous filling and display it under the QR code of "International Epidemic Prevention Health Code". Therefore, the international epidemic prevention health code is updated every 24 hours, and users can always use it as long as they declare it every 24 hours.