Do I need to prepare a nucleic acid test certificate when I book a ticket for China Eastern Airlines?

After purchasing the ticket of China Eastern Airlines, you can use WeChat to search the national government service platform-the epidemic risk level in different regions, and query the risk level in the region. If it is a low-risk area, passengers can travel normally when they arrive at the airport, as long as their body temperature is measured and their health code is displayed in green, and no accounting test certificate is needed.