Through the query related information shows that Yiwu back to Mengcheng does not need isolation, in September 5, 2022, Mengcheng Epidemic Prevention and Control Office announced the latest epidemic bulletin shows that low-risk areas to the Mengcheng do not have to isolate, and Yiwu belongs to the low-risk areas, after arriving at the Mengcheng, you only need to implement the inspection of the nucleic acid test within 48 hours of the negative proof of communication, big data trip card, registered in advance of the Mengcheng "A code pass", nucleic acid "3 days 2 check" and other measures, that is, after landing on the spot for a nucleic acid test, the interval of 24 hours after the second nucleic acid test.