When will Yunnan Tourism Vocational College be unsealed?

for 28 consecutive days, there is nothing new to unseal.

the unsealing of the sealed control area needs to meet three conditions at the same time: first, there are no new cases or asymptomatic infected people in the area in the last 14 days; second, the last close contact in the area has been exposed for more than 14 days, and the results of nucleic acid detection are all negative; third, all personnel in the area have completed a round of nucleic acid screening two days before unsealing, and the results are all negative.