The health codes introduced around the world are of great significance.

Through the different colors of the health code, you can quickly identify whether a person is a pathway to a province or city where the outbreak is more serious, and whether he or she has been in direct or indirect contact with some of the infected patients. Then through the big data analysis, can directly lock and find some of the possible infected people. This is in the early stages of epidemic prevention and control, so the practical significance is actually still very huge.

Expanded

The health code can be used to identify, through big data, whether people have had direct or indirect contact with patients diagnosed with the new coronavirus or with suspected patients, so as to provide traceability for the prevention and control of the new coronavirus outbreak and to quickly find people who may have been infected, and take timely measures to prevent the infection. The virus can then be quickly identified and measures taken to prevent further expansion of the virus.

In January 2021, the National Development and Reform Commission jointly issued a multi-departmental opinion on doing a good job of the 2021 Spring Festival and strengthening the Spring Festival epidemic prevention and control, requiring the promotion of "health code" during the Spring Festival to avoid aggregation of code-sweeping caused by a code. 2021 Spring Festival health code during the national mutual recognition. The "code" on the "code" is a case, is special, there are reasons why the temporary can not be mutual recognition with other regions, to report first.

On March 23, the National Health Commission introduced at a conference, the country has basically realized the health code of "a code pass". March 30, the national government service platform "epidemic prevention health code" has integrated "Communication big data trip card" related information, can be displayed in the health code users, whether they have been to high-risk areas and other trip information, help health code "one code pass".

April 6, Ministry of Foreign Affairs spokesman Zhao Lijian said in the introduction of the results of the recently held meeting of the foreign ministers of China and South Korea, the two sides support the inclusion of each other's citizens in their own countries into the scope of vaccination, consultations on the establishment of health code mutual recognition mechanism.