What is the situation from notification number 13 to notification number 2 1?

The reasons for 13 to 2 1 are as follows.

1. If you have ever lived in a middle-high risk area, especially overlapping with the activity track of people with positive nucleic acid test, please isolate at home first, report to the local community (village) or county-level CDC immediately, and cooperate with relevant epidemic control measures.

2. If you come from a city in a middle-high risk area, but you have never stayed in the middle-high risk area, and there is no overlap with the activity track of the people with positive nucleic acid test, please do the nucleic acid test as soon as possible under the condition of personal protection, and pay attention to personal protection and health monitoring in your daily life.