This morning, the 13th press conference on the prevention and control of the new crown pneumonia epidemic in Gansu Province was held in Lanzhou. Yang Dezhi, vice mayor of Lanzhou, introduced that Lanzhou has set up 70 circulation groups, equipped with 426 circulation personnel, and carried out drag-net investigation of key personnel in places involved in the activity trajectory of confirmed cases. As of 8 o'clock this morning, Lanzhou has tracked a total of 2184 close contacts and 3056 sub-close contacts; compared with yesterday, there are 230 new close contacts. (Reporter Li Hongjun Ren Lei)
Source: China Gansu Net