Lanzhou, 3 Nov (Xinhua) -- Title: "Whole genome sequencing of viruses is a powerful tool for tracing the origin of flow regulation" -- Visited Wang Xin, an expert of the Gansu Working Group of the Comprehensive Group of the Joint Prevention and Control Mechanism of the State Council and a researcher at the Institute for The Prevention and Control of Infectious Diseases of the Chinese Center for Disease Control and Prevention
Xinhua News Agency reporters Wang Bo and Zhang Rui
Circulation is short for epidemiological investigation. As the basic work of epidemic prevention and control, circulation adjustment plays a key role in grasping the information of infected people and accurately blocking the transmission chain of the epidemic. In this round of new crown pneumonia epidemic, what investigation methods have been used by the circulation? Will the big data survey method used by Streaming Media infringe on personal privacy? Judging from the circulation cases, how should the public take precautions? On the afternoon of 2 July, Wang Xin, an expert of the Gansu Working Group of the Comprehensive Group of the Joint Prevention and Control Mechanism of the State Council and a researcher at the Institute for The Prevention and Control of Infectious Diseases of the Chinese Center for Disease Control and Prevention, was interviewed by a Xinhua reporter.
Q: In this round of the epidemic, what investigation methods have been adopted by the circulation survey?
A: In addition to relying on traditional epidemiological investigation methods, we have also integrated seroepidemiology to detect the level of antibodies to the new crown virus, molecular epidemiology of analyzing viral load, sequencing the whole genome of the virus, and using digital epidemiology of public security and industrial information big data. Among them, the whole genome sequencing of viruses is a powerful tool for tracing the source of epidemic flow. When multiple possibilities are found in the flow tone, the sequence evidence can give a clearer direction and sometimes correct the information bias that occurs in the flow tone.
Q: Does big data investigation invade personal privacy?
A: The trajectory investigation work we carry out using public security and industrial information big data is carried out under the premise of strictly protecting personal privacy. This does not mean that the respondent's statement is not believed, but in the current fast-paced life, it is difficult for people to fully recall the places they have been to and the people they have contacted, so they use big data to help the respondents sort out their memories more comprehensively. In addition, the intersection analysis of big data trajectories can find unfamiliar infected people that the respondents have come into contact with, which cannot be achieved by inquiry alone.
Q: Judging from the cases of circulation surveys, how should the public take precautions?
A: It's still about avoiding gathering, wearing masks, and washing hands frequently. In the investigation of confirmed cases in Lanzhou, we found in surveillance video that a certain number of people were infected because they did not wear masks to talk to confirmed cases. At the same time, we have also noticed some cases of infection caused by wearing masks but contact with confirmed cases without proper hand hygiene. This shows that hand cleaning and disinfection are also important.
![WM Motors, which was once a "high-ranking official", is now only relying on chief growth officer Wang Xin, which is afraid that it will be difficult to last for a long time[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)