Joke Collection Website - Public benefit messages - What is the meaning of computer scanning code before vaccination in community hospitals?

What is the meaning of computer scanning code before vaccination in community hospitals?

Tracking vaccine information. According to official website, Tai 'an Daily, before vaccination, community hospitals can scan the code by computer to trace the production, distribution, storage and vaccination of each vaccine, and the information is more accurate. Vaccine refers to biological products made of various pathogenic microorganisms for preventive inoculation.