3 1 province has 22 newly confirmed cases and 4 local cases in Liaoning province. Where is the zero source of infection?

3 1 province has 22 newly confirmed cases and 4 local cases in Liaoning province. The zero source of infection is still being traced, probably from Yingkou City, Liaoning Province.

1. China COVID-19 epidemic information According to the data released by National Health Commission, on May 7th, 3 1 province and Xinjiang Production and Construction Corps reported 22 newly confirmed cases, including 8 imported cases/kloc-0 and 4 local cases, all in Liaoning, including 2 cases in Shenyang and 2 cases in Yingkou. There are no new deaths in the country. From May 13 to May 17 19, Anhui Province reported 7 confirmed cases and 7 asymptomatic infected persons, while Liaoning Province reported 13 confirmed cases and 5 asymptomatic infected persons, including 9 confirmed cases and 5 asymptomatic infected persons in Yingkou City and 4 confirmed cases in Shenyang City.

2. Current transmission route of the epidemic: The first confirmed local case was found in Lu 'an City, Anhui Province in May 13. Subsequently, according to the epidemiological investigation of the confirmed cases, several confirmed cases and asymptomatic infected persons were found in Lu 'an City and Hefei City of Anhui Province, Yingkou City of Liaoning Province and Shenyang City. As the first confirmed case of this epidemic, it is not through the analysis of social activity trajectory. Patient zero? At the beginning of May, the patient had participated in the training of a photography base in Lu 'an, and the person in charge of this training came from Yingkou, the city with the worst epidemic. Later, COVID-19 infected people found in Lu 'an, Hefei and Yingkou all had contact with the trainees. Although the confirmed cases in Shenyang had no contact with the trainees, they went to Yingkou for a holiday in early May. Through the analysis of various geographical locations and human activity trajectories, it is likely that the current COVID-19 epidemic started in Yingkou and then gradually spread to other places.

III. The Effect of Vaccination on COVID-19 All the infected people found in this round of COVID-19 epidemic have the same thing, that is, they have not been vaccinated with COVID-19 vaccine. Vaccination with COVID-19 vaccine can not produce 65,438+000% protective efficacy, but it can effectively prevent COVID-19 infection and reduce the incidence of severe diseases. When the vaccination rate of COVID-19 in a country or region reaches 70-80%, a group immune barrier can be established, which means that most people contain antibodies against COVID-19, and naturally COVID-19 loses the ability to spread freely among people, which also prevents the occurrence of group infection in COVID-19. This is for the country to promote people as soon as possible. Although the epidemic situation in COVID-19 has been controlled relatively stably, sporadic local infections still occur, which reminds us that the epidemic situation in COVID-19 will resurface at any time, and we should not wait and see and take chances. Only by completing the vaccination of COVID-19 vaccine in time can we provide the basic guarantee for the country's economic production.