Is COVID-19 Big Data SMS accurate?

Big data SMS is the information sent by the Municipal Center for Disease Control and Prevention through big data screening. Big data shows that you may have been exposed to cases or asymptomatic infections in COVID-19, or you may have been exposed to the environment or articles polluted by COVID-19.

Don't panic after receiving the message, please do this: 1. If you have ever lived in a high-risk area, especially overlapping with the activities of people with positive nucleic acid test, please isolate yourself at home first, report to the local community (village) or county-level CDC immediately, and cooperate with relevant epidemic control measures.

2. If you come from a city in a medium-high risk area, but you have never been in a medium-high risk area, and there is no overlap with the activity track of people with positive nucleic acid testing, please do nucleic acid testing as soon as possible under the condition of personal protection (see Changsha Publishing House and Changsha CDC for details on the sampling points of nucleic acid testing in COVID-19), and pay attention to personal protection and health monitoring in daily life.