Do you need to do nucleic acid when boarding in Shenzhen?

According to your destination, Shenzhen is a low-risk area, and there is no need for local nucleic acid testing before boarding. However, if it is a high-risk area, such as Yunnan, you may need a certificate of nucleic acid testing, or you need to fly to an overseas destination, you need a certificate of nucleic acid testing within the validity period before you can check in. At the same time, it should be noted that passengers with trauma or recent surgery may also be rejected.