Those who came back from Lanzhou and lived without the epidemic, should they go back to quarantine?

No, you must hold a 48-hour nucleic acid certificate. Report to the community.

Not isolated, with 48-hour nucleic acid

There is no need for isolation. You must have a 48-hour nucleic acid certificate. When you go to Langdi to do nucleic acid, you must report to the community and self-quarantine at home for three days.

Two inspections in three days is enough. The first time the nucleic acid comes out, you can go out. It is low-risk and you don’t need to be isolated. But now the epidemic in Chengdu is more serious than in Lanzhou. Don’t come back if you are fine.