From 0 to 24:00 on May 20, there were no newly confirmed cases in Jilin Province, one new case was confirmed in Shanghai, and Shanghai announced that the cases of Hubei coming to Shanghai involved regions and locations. Dr. Zhang Wenhong said that the international situation is still in the middle of the development of the epidemic, and China is in the late stage of the epidemic. Symptomatic patients have been adequately isolated and treated, but there will still be a small number of asymptomatic patients. The digestive stage of asymptomatic patients is better than not. He also said that under the new normal of the epidemic situation, there will gradually be confirmed cases of accidental distribution of confirmed cases in various places since then, and it is necessary to be psychologically prepared.