1, CDC network platform: At present, CDC has related network platforms, which can query health certificate information through ID cards, but sometimes the network lags behind.
2. WeChat inquiry: Search and pay attention to the official account of local health certificate WeChat on WeChat. After entering the official account of WeChat, find "My Physical Examination" or related options in the menu, and enter personal information or health certificate number according to the prompts for inquiry.
3. Browser search: search for "XXX health certificate inquiry" with a browser on the computer, select official website to enter, and enter personal information or health certificate number according to the website prompts for inquiry.