The transmission chains of Xi'an, Zhengzhou and Ningbo are all related to family gatherings and dinners

According to the official website of the National Health Commission, at 0-24:00 on January 4, there were 41 new local cases, 35 in Shaanxi, all in Xi'an City; 4 cases in Henan, including 2 cases in Xuchang City, 1 case in Zhengzhou City, and 1 case in Zhoukou City; and 2 cases in Zhejiang, all in Ningbo City.

On January 4, according to the press conference on the prevention and control of the new crown pneumonia epidemic in Zhengzhou, Henan Zhengzhou has preliminarily identified three transmission chains, and compared with Xi'an and Ningbo, the transmission chains in the three places have their own similarities and differences. The People's Daily health client combed through the three local transmission chains and found that the community and regional communication caused by family gatherings and meals are still the main methods.

Zhengzhou: Three chains of communication, pointing to the poker game, the funeral feast and the family

On January 4, Zhengzhou City's new crown pneumonia epidemic prevention and control press conference introduced that after the outbreak of this round of epidemic, Zhengzhou city and county levels organized 134 professional circulation teams of more than 400 people for the first time, in-depth circulation of key personnel activity trajectories, "one person and one file" to establish a case relationship chart. Li Huifang, deputy secretary-general of the Zhengzhou Municipal People's Government, said that from the existing nucleic acid detection and circulation of the epidemic in Zhengzhou, the transmission chain is relatively clear, mainly caused by local agglomeration activities such as family gatherings and meals. Through timely and effective measures, the overall epidemic situation can be prevented and controlled. At present, the three transmission chains of card friends, funeral banquets and families have been preliminarily investigated, and a total of 161 people and 335 people have been closely contacted.

Xi'an: Among the three chains of transmission, the dinner party leads to the largest number of infected people

According to Liu Feng, director of the Shaanxi Provincial Center for Disease Control and Prevention, at a press conference on epidemic prevention and control on December 21, 2021, the source of the epidemic in Xi'an has been identified, which is the flight PK854 from Pakistan to Xi'an on December 4. At present, there are three known sources of infection - the first is the inbound flight to isolate the hotel; the second: the Pharmacy of the Ziniu Outpatient Department; and the third: the Family Hospital of Chang'an University. Among the three transmission chains, the communication chain of Chang'an University is the most noteworthy, and the transmission chain has even been further extended through the Four Seasons Club, which has become the transmission chain with the most infected people. Through the dinner on the evening of December 11, the four seasons club infection cases and Yan'an infection cases were associated with the infection cases of Chang'an University.

Ningbo: A chain of transmission, family transmission triggers community transmission

According to the press conference on the prevention and control of the new crown pneumonia epidemic held in Ningbo, Zhejiang Province on December 12, 2021, the spread of the epidemic in Ningbo has three main characteristics: first, the characteristics of the gathering of places are obvious; second, the transmission chain is relatively clear. The first case first spread within the family, passed from family members to colleagues, and then caused multiple infections by their colleagues through the Zhenhai District Life Sunshine Moxibustion Care Center, and then the infected people in the center caused a recurrence of infection in the family and community. The local transmission path of the epidemic in Zhenhai is clear, all belong to the same transmission chain, and the trajectory of all infected people is clear. (Liang Yuan)