What QR code does Changsha use for nucleic acid?

Xinxiang health code. Changsha, also known as Xingcheng, is a prefecture-level city, provincial capital and megacity under the jurisdiction of Hunan Province. It is an important central city in the middle reaches of the Yangtze River approved by the State Council. Xinxiang health code is used for nucleic acid detection in this city, with three colors of red, yellow and green, providing reference information for enterprises and individuals to return to work.