Do green travel codes with asterisks need to be isolated?

You need isolation if you have been to high-risk areas, and you don't need isolation if you haven't been there. If the green code of travel itinerary code has an asterisk, it means that the city I have been to before has a medium-high risk area, and I have been to the medium-high risk area in recent 14 days. If you have indeed been to high-risk areas, you should be isolated; On the contrary, those who have never been to high-risk areas do not need to be isolated.