1. Use the "Little Bean Seedlings" APP. Download the "Little Bean Seedling" APP in the mobile app store, add or bind the child's information, and synchronize the information by synchronizing the mobile phone number or manually entering the child vaccination code.
2. Visit the official APP for inquiry. Download and use the official vaccination records to query the APP, such as "vaccine guide" and "excellent vaccine", and follow the instructions of the APP.
3. Telephone inquiry. Call the local vaccination clinic or CDC to get the vaccination records of children.
4. Visit the official APP for inquiry. Download and use the official vaccination records to query the APP, such as "vaccine guide" and "excellent vaccine", and follow the instructions of the APP.