Healthy Jining showed positive. Why doesn't the big data health code show positive?

COVID-19 decided the color of the code, and it will soon become red team. No travel, centralized isolation treatment. Nucleic acid detection can detect whether COVID-19 exists in human body. If the nucleic acid test result is positive, the diagnosis can be comprehensively judged according to the epidemiological history and clinical manifestations. If there are no related symptoms, it may be asymptomatic infection. The green code of health code is based on epidemic prevention data to verify that there is no abnormal health status, and if the nucleic acid test is positive, the health code will turn into a red code or a purple code, which depends on the local epidemic prevention policy, because the purple code in some areas represents risk groups, such as confirmed cases, suspected cases and asymptomatic infected people.