3+ 1 1 ":that is, 3 days of home health observation+1/daily routine health monitoring (from the day of leaving the risk area),1,3 14 days for nucleic acid detection.1.
"2+ 14": check the negative proof of nucleic acid test within 2 days (48 hours), carry out daily health monitoring on 14 days, and carry out nucleic acid test on 3 days and 14 days. 14+7 ":that is, 14 days of centralized isolation (1, 3, 7, 14 days of nucleic acid detection) +7 days of home health observation (2, 7 days of nucleic acid detection).