At 17:00 on October 28, 2021, the Cd-operative Center of Surabaya County, Jining City, Shandong Province, received a letter of assistance, and Zhang Moufeng, Ma Moujun, and Duan Moujun were identified as close contacts because they took the K42 train in the same carriage as the confirmed case on October 16 (Zhang Mou in 03 carriage 0101, Zhang Moufeng in 03 carriage 0099, Ma Mou in 03 carriage 0093, and Duan Moujun in 03 carriage 0092).
The Surabaya County Center for Disease Control and Prevention immediately carried out comprehensive investigation and control of Zhang Mou, Zhang Moufeng, Ma Mou, and Duan Moujun. After epidemiological and big data surveys, the main activity trajectories of the 4 people are as follows:
(Reporter Li Bingchan)
Source: CCTV News