If the health code has been moving and staying near the key places where confirmed cases and asymptomatic infected people have stayed, and may have had contact with confirmed cases and asymptomatic infected people, it will be included in the yellow code range. People who enter and leave these key places after the critical period of confirmed cases and asymptomatic infected people will not be judged as yellow codes. The specific sites and dangerous time periods are determined by the office of COVID-19 Prevention and Control Headquarters of each relevant city according to the on-site epidemiological investigation.
If the "three days and two tests" are completed after the dangerous period of possible contact with confirmed cases and asymptomatic infected persons, that is, two nucleic acid tests are done, and the interval between the two tests exceeds 72 hours, and the results are all negative, the system will automatically remove the yellow code and turn to the green code. The epidemic is not over yet. For the health of yourself and others, please cooperate with nucleic acid testing under the premise of personal protection!
How to take personal protective measures
1, wash your hands frequently and maintain good respiratory hygiene habits. When coughing or sneezing, cover your mouth and nose with paper towels and towels. Wash your hands after coughing or sneezing, and avoid touching your eyes, nose or mouth.
2. Enhance physical fitness and immunity. Balanced diet, moderate exercise, regular work and rest, to avoid excessive fatigue. Open the window for ventilation at least three times a day for 20~30 minutes each time. When the outdoor air quality is poor, the number and time of air exchange should be reduced appropriately.
3. Wear a mask to minimize activities in crowded places and avoid contact with patients with respiratory infections.