If you don't go back to the high-risk area, you don't have to do nucleic acid. However, I suggest you take a nucleic acid test car. It is much more convenient to go anywhere with the nucleic acid test report within 48 hours. Panjin, also known as the Wetland Capital, is a prefecture-level city under the jurisdiction of Liaoning Province, an important petroleum and petrochemical industrial base in China approved by the State Council, and one of the important central cities in Liaoning coastal economic belt.