Those who come to and return to goodness in medium and high risk areas should take the initiative to declare and cooperate with the implementation of health management measures. Those who return from outside the province, especially those who return from the epidemic provinces, should make a pre-declaration of their trip through the "return code" in advance, report to the town (street), village (community) unit or hotel as soon as possible after the aftermath, and cooperate with the implementation of corresponding health management measures. Those who come from low-risk areas outside the province but have been reported but do not need to be included in health management can go to the nearest COVID-19 nucleic acid sampling point for nucleic acid testing.