How did the CDC know about my travel records?

By using big data analysis to check whether citizens come back from key epidemic areas, and send SMS reminders at fixed points in time, at the same time, the selected key prevention and control data will be distributed to the community layer by layer, and then the grassroots grid staff will conduct targeted investigations according to big data information to ensure that grassroots epidemic prevention and control work is carried out accurately.

Whenever a positive specimen is detected by the testing institution, the flow adjustment team will receive the report at the first time, assign the flow adjustment team to take charge at the first time, and carry out the online and offline joint flow adjustment work at the first time. Online will cooperate with public security organs and other departments in depth to "play back" the interviewee's itinerary through video surveillance, face recognition and other technologies, and compare it with the inquiry.

Weave a case-centered web.

The investigation of epidemic situation begins with asking questions. The purpose of asking questions is to quickly identify the transmission chain, quickly implement personnel investigation and control, and block the spread of epidemic situation. On the one hand, we should trace back to the source and find the source of infection; On the one hand, it is necessary to intercept and block the transmission chain.

According to the information pushed by big data, we must first call to verify the identity and whereabouts of passengers one by one, and do not miss any suspicious information. Some of the information reserved for purchasing air tickets is not in person, but only in transit. We screen and report them one by one according to different situations, and the provincial departments handle them according to the feedback information, and don't let go of any suspicious links.

Inform the passengers of their real situation at the first time and remind them to report to their community units immediately and not to go out again. At the same time, it is necessary to obtain his current position and trajectory, and promptly notify the relevant departments of the corresponding provinces and cities to take corresponding prevention and control measures.