2. For those who have returned (arrived) and merged within 7 days, the yellow label and health code of Taiyuan Quarantine Registration Information System shall be tested for nucleic acid on the ground. The control measures of "7 home isolation medical observation and 3 nucleic acid detection" were implemented, and the nucleic acid detection was carried out on 1, 4 and 7 days respectively.
3. For those who have returned (arrived) and have lived in low-risk areas within 7 days, Taiyuan Quarantine Registration Information System will mark them blue, and complete nucleic acid detection twice within 3 days after returning (arrived) and doing health monitoring, and bring them into community management. The yellow code management of nucleic acid detection was not implemented according to the required time limit and frequency, and the green code was changed after the completion of nucleic acid detection.
4. No epidemic counties (cities, districts) outside the province returned (arrived) and merged personnel, Taiyuan quarantine registration information system was green label, nucleic acid detection was carried out on the ground, and it flowed orderly under the premise of personal protection, and then it was completely covered in chaos within 3 days.