Can the yellow code cross the market?

Health coding can not only cross cities, but also cross provinces. But absolutely not allowed to enter the epidemic area. Health codes come in three colors.

If it is a green code, it means that you are from different provinces and cities, and all the people you have contacted are healthy.

If the code is yellow, it means that you have had indirect contact with COVID-19-positive patients, so you need to isolate yourself and notify the street office.