How to manage the yellow code assigned to people entering Nanjing?

"Starting from 17, relevant departments will assign yellow codes to the health codes of people returning to Ningning outside the district and send SMS reminders." Li Haijun said that such prevention and control measures are based on the recent national epidemic situation. At present, the global epidemic situation is still in an epidemic situation, and the domestic epidemic prevention and control situation is very complicated and severe. Ningxia, as one of the few provinces without epidemic situation in China, has epidemic situation in neighboring provinces, and the pressure on foreign defense investment is huge. Especially in this round of epidemic, there are many asymptomatic infected people. Many asymptomatic infected people can't know whether they are infected or not. If they are not found, they are a wandering source of infection.

The measures of giving yellow code to people returning to Ning outside the district and conducting nucleic acid detection twice are to improve the sensitivity of monitoring, find the source of infection at the first time and block the risk of infection. "I am not afraid of the case input, I am afraid that the case will not be found in time after the input, which will have a serious impact." Li Haijun said that the cities, counties (districts) will coordinate with each other to complete the 1 nucleic acid test within 24 hours after the returnees from outside the district enter Ning, with an interval of more than 24 hours, and complete the second nucleic acid test within the next 48 hours. Those with negative nucleic acid test will change their health code from yellow to green on the fourth day after entering Ning.