China News Service, Dalian, January 3 (Reporter Yang Yi) Zhao Lian, deputy director of the Dalian Municipal Health Commission, said at a press conference on epidemic prevention and control held by the local government on the 3rd that the epidemic was detected early, spread quickly, and involved There are many scenes, strong transmission power, and super transmission phenomenon; case Jin caused all 11 people to be infected through a family gathering, and then spread to the corridor unit residents and other social contacts where they lived, causing a total of 33 people to be infected.
According to reports, among the related cases of Jinzuo Commercial Building, one case, Jin (case 35), participated in a family gathering of 11 people when he did not become ill, causing all other 10 people to be infected later.
After epidemiological investigation, it was found that Jin was the owner of Jinzuo commercial building, and his onset time was December 15th. He was the person with the earliest illness in his family. Therefore, it was determined that Jin was the source of infection of his family, and his source of infection was Jinzu Commercial building.
At the same time, family members are infected through daily contact or environmental exposure. As of 24:00 on January 2, 2021, a total of 33 cases of Jin-related confirmed cases and asymptomatic infections, including 21 confirmed cases and 12 asymptomatic infections .
When summarizing the characteristics of this round of the epidemic, Zhao Lian said that the epidemic was detected early, spread quickly, involved many scenes, and had a strong spread.
First, the epidemic was detected early.
Four cases of this epidemic were discovered during the weekly nucleic acid tests performed by cold chain practitioners, one case was discovered during the admission test of a new hospitalized patient, and one case was discovered before taking the graduate exam.
Afterwards, through close contact screening and full screening in key areas, positive infections were gradually found.
Secondly, it spreads fast.
It was discovered from the flow investigation that on the day the epidemic was reported on December 15, the epidemic had spread rapidly in the Jinzuo Commercial Building, and had spread to the community during family gatherings and gatherings of people. Positive infections were successively detected. The 5 cores of the epidemic were concentrated. The area gradually emerged.
From the introduction of Yuan on December 11 to the implementation of closed control in key areas on December 21, 26 cases occurred in 4 generations within 10 days, and the spread was faster than the "7.22" epidemic.
Secondly, there are many scenes involved.
The Jinzuo commercial building where the dockers visited is located in the core business district with a large number of people and high mobility, which has caused the virus to spread rapidly.
The prevention and control front ranges from cold chain terminals to communities, shopping malls, schools, and hospitals, involving all kinds of people, multiple scenarios, and complex situations.
Finally, the communication power is strong.
Super transmission occurred. Jin (case 35) caused all 11 people to be infected through a family gathering, and then spread to the corridor unit residents and other social contacts where he lived, causing 33 people to be infected.
Since December 15th, Dalian has reported a total of 48 confirmed cases of new coronary pneumonia and 30 local asymptomatic infections under medical observation. (Finish)