What is the positive code detected in Wuhan?

Red team or purple code. The health code of subjects with positive nucleic acid test results is generally red, and some areas have purple codes, which belong to asymptomatic infected people and other high-risk personnel with positive nucleic acid test results. Health Code The green code represents the health status of the national government service platform for epidemic prevention data verification, and the yellow code represents the health status of the national government service platform for epidemic prevention data verification, but the on-site temperature measurement is abnormal.