On the afternoon of June 65438+1October 65438+July, Jilin Province held a press conference on epidemic prevention and control to inform about the epidemic prevention and control. Up to 6: 00 on June 28th, 201/year, 34 confirmed cases and 80 asymptomatic infection cases were reported in COVID-19. At the press conference, the relevant person in charge informed that combined with epidemiological investigation and virus genome-wide sequencing analysis, the spread chain of this epidemic in Jilin Province was clear, which was caused by the local spread of asymptomatic infected people in Wangkui County, Heilongjiang Province after they were imported into Jilin Province. At present, among the reported 1 14 cases, 9 cases are imported cases in Heilongjiang province, and 105 cases are local secondary infections. Among the secondary infected persons, 3 cases were family members of imported infected persons from outside Jilin Province, and the rest 102 cases were both imported cases.

The reporter found out? Super communication? The epidemic involves two health centers. Near Dongyuan Community, Dongchang District, Tonghua City, there is a suite with a green plaque on the first floor of an old residential building. Super propagation field? Sheng Yuan Quality Life Workshop. According to an insider, during the training, a room less than 100 square meter can accommodate 30-40 people at the same time, and only a few people wear masks. The director of the emergency office of Jilin Provincial Center for Disease Control and Prevention said that Lin was in the early stage of infection when he was found, and he had strong detoxification ability. Of the 2 1 specimen collected from the living environment in Tonghua City, 16 was positive, with a high positive rate.

After investigation by experts, it was found that the infected people were in a closed space and exposed to high-concentration aerosol environment for a long time, and most of them were middle-aged and elderly people. They have basic diseases, poor immune function and easy infection.

There are many kinds of coronaviruses. In addition to the latest popular novel coronavirus, * * * found six coronaviruses that can infect humans. These coronaviruses are mainly transmitted by close-range droplets. When patients cough, sneeze or talk loudly, aerosol particles will be formed, which will be inhaled by susceptible people and infected. Because the air droplet stays in the air for a short time and moves about two meters, it only causes short-distance transmission.