Sadly, on May 18th, a five-year-old boy in Jilin was diagnosed, and the last thing he wanted to see happened again. Send an important reminder: beware of the second wave! We can&;t help asking, where is the source of infection in Lan Shu this time? According to the report of Jilin Health and Health Commission on May 19th, within 11 days, 45 people were infected by cluster pneumonia in Lan Shu, Jilin Province, including 42 confirmed cases and 3 asymptomatic infected people. Among them, a 5-year-old boy is a close contact of the confirmed case 3 in Fengman District of Jilin City notified by Jilin Province on May 17, and his address is Fengman District of Jilin City. On May 18th, it was diagnosed as a confirmed case after consultation by the expert group. In addition, two patients&; addresses are located in Jilin High-tech Zone, which means that the cluster pneumonia in Lan Shu, Jilin Province has extended to the first district. Where is the source of infection? In the bulletin of Jilin Provincial Health and Health Commission, it was found that the source of infection of female laundry workers diagnosed in shulan city on May 7 was still unknown. Wu Zunyou, chief epidemiologist of CDC, said in an interview with CCTV that there are four possible sources. 1. The source of transmission may be female laundryman. However, it is still inconclusive, just a speculation that she may be the source of this gathering. 2. There is still a real source that has not been discovered, which may be the main source of this spread, and more investigation and biological means are needed to analyze and speculate. 3, related to Russian entry patients. It is difficult to determine whether it is necessary to carry out gene sequence analysis with the virus of patients entering Russia. 4. Laundry workers are infected in the process of washing clothes. In this regard, Bayin Chaolu, secretary of Jilin Provincial Party Committee, and Jing Junhai, governor of Jilin Province, have repeatedly stressed the need to do a good job in the flow adjustment and identify the source and diffusion surface as soon as possible. At present, Fengman District takes residential quarters as a unit to implement closed management and control, and urban and rural residents can&;t leave the city in principle, and so on. After the final result is determined, we will release relevant information as soon as possible to respond to social concerns in a timely manner. Academician issued a warning. Now it seems that Jilin is indeed endless. Academician issued a warning: beware of the second wave. With the widespread control, life gradually returned to normal, enterprises resumed production and schools resumed, and some people relaxed their vigilance against prevention and control. In this regard, academicians said that they should not be complacent, because the risk of the second wave is still great. In recent weeks, some areas, including Wuhan and Northeast China, have seen local clustering, saying, &”;Most people are still susceptible to the virus because they have not obtained enough immunity.&”; Therefore, you and I are still susceptible people, and we haven&;t achieved a comprehensive victory in prevention and control yet. We should wear masks and pay attention to the protective measures. We should not join in the fun in places where we should not gather, and everything has not yet settled! Welcome to pay attention to @ 丫丫丫丫丫丫丫丫丫丫丫丫丫丫, and give you the most objective point of view analysis …!