From March 7th to 16:00 on March 17th, a total of 60 positive infections have been reported in this round of epidemic in Beijing. The Beijing Daily client reviewed and found that the 60 infected persons involved 9 transmission chains, of which 6 were imported transmission chains from outside Beijing, 1 was a closed-loop staff of Ditan Hospital, and 2 had not yet reported the source.
Propagation chain 1→Transmission chain imported from outside Beijing (12 cases in total)
Infected persons involved: 1, 2, 3, 8, 9, 10, 13, 14, 27, 28, 29, 30
On March 7, Beijing reported 1 new local confirmed case (infected person 1), who now lives in Shuangyushu Xili Community, Zhongguancun Street, and works at No. 43, North Third Ring West Road, Haidian District. On March 8, a colleague working on the same floor as him was diagnosed. The colleague (infected person 2) had traveled to other provinces from February 25 to 27. On the same day, the wife of infected person 2 was diagnosed.
This chain of transmission currently involves 12 infected persons, including infected persons 1 and 2 working on the same floor at 43 North Third Ring Road West , 8, 10, the wife of infected person 2, family members 9, 13, and 14 of infected person 8, and neighbors 27, 28, 29, and 30 of infected person 8 in the same unit.
Communication chain 2→Beijing input Transmission chain (6 cases in total)
Involving infected persons: 4, 5, 6, 7, 18, 53
On March 8, Beijing reported a family clustered epidemic, and now lives in Vanke Qingqing Home in Dougezhuang Township, Chaoyang District. Infected Person 4 and Infected Person 5 are siblings. They were tested positive at Tongzhou Maternal and Child Health Hospital on March 7. Infected Person 6 was the mother of Infected Persons 4 and 5. Infected Person 7 was the great-grandmother of Infected Persons 4 and 5. On February 28, he returned to Beijing from other provinces.
On March 10, 18 infected persons from the same family were confirmed. The case took Z118 to Beijing on February 28, and 4 infected persons came to Beijing. for his granddaughter. On March 16, an employee (infected person 53) of the Honey Country Children’s Education and Growth Center, which had been visited by infected person 4 and infected person 18, was diagnosed.
Communication Chain 3→Outside Beijing Transmission chain (9 cases in total)
Involving infected persons: 11, 15, 24, 25, 31, 33 , 43, 46, 47
On March 9, 11 infected persons were diagnosed, and the rented place was Xiaohongmen Township, Chaoyang District Hongbo Homeland District 1. The case arrived in Beijing from another province on the G916 train on March 2.
This chain of transmission currently involves 9 cases of infection, including 15, 15, and 15 who live in the same district as 11 in Hongbo Homeland. 24, 25; Infected person 33 who is in close contact with Infected Person 15, and Infected Person 31, 46, and 47 who both work in Chenghuancheng Auto Parts City; Infected Person 43 with the same address as Infected Person 46 and 47 (students in school) ).
Communication Chain 4→Outside Beijing Transmission chain (1 case in total)
Infected person 12 now lives in Ocean Shinkansen Community B, Xiaguangli Community, Maizidian Street, Chaoyang District He traveled to Xi’an and Shanghai on business trips, and arrived in Beijing on March 4 by flight CA1518.
Propagation chain 5→Transmission chain imported from outside Beijing (1 case in total)
Infected person 16 now lives in Building 409, District C, Huahanfuyuan, Dongba, Chaoyang District, and Building 112, District 1, Wangjing Xiyuan, Donghu Street, Chaoyang District, and will take the bus on March 5 Flight MU5151 returned to Beijing, which was a close connection of confirmed cases in other provinces.
Propagation chain 6→Transmission chain imported from outside Beijing (7 cases in total)
Involving infected persons 19, 20, 21, 23, 26, 32, 37
Infected Person 19 now lives in Building 3, Yizhuang Town and Chengjingyuan, Daxing District, and works at Block A, Jinsong Fulton Center, Chaoyang District. The case returned to Beijing by flight HU7610 on March 5. Infected Person 26 works with him in Block A of the Fulton Center.
Infected Person 19 is also involved ina dinner chain transmission, after returning to Beijing on March 5, he had a dinner with 9 classmates on March 7. At present, infected persons 20, 21, and 23 have been confirmed among the classmates. At the same time, this chain of transmission also includes infected person 23’s close contact with infected person 37, and infected person 21 with close contact with infected person 32.
Communication chain 7→Closed-loop personnel (1 case in total)< /span>
Infected person 22 is currently staying at the Holiday Inn Express Hotel in Cuigezhuang Township, Chaoyang District. He is a cleaning staff of Beijing Ditan Hospital and will enter point-to-point closed-loop management from March 3.< /span>
Communication chain 8→School transmission chain, the source is not clear (20 cases in total)
Involved infected persons 34, 35, 36, 40, 41, 42, 44, 45, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 59, 60
On March 14, Beijing reported that 2 new students were infected, Among them, 34 of the infected live in Building 29, Xibahezhongli, Xiangheyuan Street, Chaoyang District, and 35 of the infected live in Building 13, Minwangyuan, Hepingli Street, Dongcheng District. All are students of Hepingli No. 4 Primary School (East Campus).
From the treatment of the epidemic and the investigation, it was found that the two students who were diagnosed had two suspicious exposure histories. First, the parents had a recent history of leaving Beijing; The second is that students have a history of exposure to off-campus training places and other crowded places. Gene sequencing shows that the virus infected by infected person 34 has a low homology with the city’s previous local and overseas imported cases, which is similar to the international new coronavirus uploaded abroad in January 2022. The virus sequences in the database are highly homologous. At present, in this transmission chain, the students involved in the notification include infected persons 34, 35, 36, 40, 41, 44, and 49.
School transmission chain also includesa clustered outbreak in a roast duck restaurant. Infected persons 50, 51, 52 , 57, 58 and a group of five went to Yulexuan Roast Duck Restaurant in Dongcheng District, all of which have been diagnosed and infected 3 restaurant waiters (infected persons 54, 55, 56).
Propagation chain 9→relative transmission chain, the source is not yet clear (2 cases in total)
Involving infected persons 38, 39
On March 14, 38 infected persons and 39 infected persons were confirmed. Infected person 38 lives in No. 25 Yuetan North Street, Zhanlu Street, Xicheng District, and infected person 39 lives in Building 14, Dinghuixili, Balizhuang Street, Haidian District. According to reports, 38 of the infected persons are risk control personnel. On the evening of March 11, it was learned that her husband who was on a business trip outside the province was a high-risk person. Infected person 39 is the niece of infected person 38, and her mother tested positive for nucleic acid outside Beijing on March 14.
Other:
Infected Person 17 is currently living in Building 25, District 5, Ruihai Homeland, Xihongmen, Daxing District, and the working place is the South District of Jiayou International Building, No. 25, Landianchang South Road, Haidian District. The case was closely isolated as a confirmed case on March 8, and the trajectory informed him that he measured the house at the home of the confirmed case on March 6, and then took Metro Line 13 to transfer to Line 2.
Source: Beijing Daily client reporter Yang Meng
Editor Yang Meng
Process Editor Liu Weili