Those who live in other low-risk areas in Taiyuan after February 10 need to provide negative proof of nucleic acid test within 48 hours. Those that cannot be provided need to be tested for nucleic acid, and those that are negative for nucleic acid can flow in an orderly manner. If the person lives in Taiyuan, he will be monitored for 7 days, and the nucleic acid test will be conducted again within 72 hours after entering Jiangsu (the time interval between the two nucleic acid tests is more than 24 hours).