Under what circumstances will one be advised to return due to the epidemic?

The situation of being persuaded to return due to epidemics in various places depends on the epidemic prevention situation in each place. Generally speaking, there are the following situations: 1. The epidemic situation is focused on, and foreign freight vehicles in key control areas 2. The yellow code with * in the trip code is red Those whose 3 health codes come from medium- and high-risk areas are not green codes, and those who do not have a negative 24 nucleic acid test certificate may also be advised to return