65438+1 October 65438+March Jilin Province Bulletin1Example An asymptomatic infected person imported from Heilongjiang Province was trained and taught in Aishang Han Bang Health Center in Gongzhuling City, Jilin Province and Sheng Yuan Quality Life Workshop in Tonghua City, Jilin Province, and then caused group infection. The case has infected 32 people in 3 cities of Jilin Province, distributed in Tonghua City (12 cases), Gongzhuling City (19 cases) and Songyuan City (1 case). ?

1, asymptomatic infection trajectory:

Male, born in 1976, from Hulan District, Harbin City, Heilongjiang Province, is an individual marketer. 1 October 5th, 65438+ took K350 train (1 1 train 13) from Nancha, Heilongjiang, arrived at Harbin West Railway Station, and was notified at 0-8 o'clock on October 8th with1and/kloc-0. 1 October 7th, 65438+ Take the train Z174 (bus No.6 and No.2) from Shuangcheng, Heilongjiang, and take the shuttle bus from huanghe road Bus Station to Fan Jiatun Town, Gongzhuling City around 15, 65438+1October 8th1from. 1 October 9th 65438+ Take the D 124 train (No.5 train 5A) from Harbin West Railway Station to Changchun Station, then take the subway1line to Changchun Expressway Passenger Station, and take the passenger train from Changchun to Tonghua at 12: 35. 65438+1October 10 to 1 1 Training and teaching in Sheng Yuan Quality Living Workshop.

65438+1October 65438+February, Tonghua City immediately tracked down the close contacts with Heilongjiang Province and tested their nucleic acids. The test result was positive, and he was diagnosed as asymptomatic infection after consultation by the clinical expert group. After the asymptomatic infected people tested positive for three nucleic acids, Tonghua City conducted a follow-up investigation on their close contacts. Many asymptomatic infected people were found among the staff who taught in Sheng Yuan Quality Life Workshop.

2. How to treat the phenomenon of hyper-propagation?

Feng Zijian, deputy director of the China Center for Disease Control and Prevention, said that a considerable proportion of COVID-19-infected people do not spread and will not cause second-generation cases; But a few infected people or patients will spread more than the basic number? More than 3, will spread more than 3 second-generation cases, which constitutes the phenomenon of hyper-transmission, which is a very important feature of COVID-19. In the process of epidemic control in various places, it is not surprising to find the phenomenon of super-transmission or super-disseminator. ?

3. Event inspiration.

Reducing aggregation activities is a very important measure to eliminate hyper-propagation. At present, the epidemic situation is well protected, not crowded and not gathered. If you have acute respiratory symptoms such as fever and cough, please wear a medical mask and go to the fever clinic of the local designated medical institution in time. ?