Does Liutan Dongli (Beichen District, Tianjin) need to be isolated?

No need. According to the epidemic information in Tianjin, if they need to leave Tianjin, they must have a negative nucleic acid test certificate within 48 hours and a green health code. At the same time, it is necessary to implement the system of examination and approval for leaving Tianjin. According to the principle of "who is in charge is responsible", it must be recognized by the unit or community. All personnel returning from other places should check the nucleic acid negative proof system within 48 hours and take the initiative to file with the relevant personnel.