Is it necessary for Tianjin to be isolated from Chengmai County?

No need. According to the news of epidemic situation in Tianjin on February 9, 2022, there were no new cases. Tianjin Tianjin added 0 local asymptomatic cases and 0 local cases. According to the travel policy of the two places, it is necessary to actively cooperate with landing inspection (48-hour nucleic acid test certificate, travel code, health code), landing inspection (that is, leaving without waiting for the test results), landing management (classified management according to the itinerary) and other measures. There is no secret contact, no living history in high, medium and low risk areas, and no need for concentration or home isolation.