The peak of Xuzhou epidemic is probably in January and February. At the sub-forum on Life and Health of the 2023 Global Times Annual Meeting, Liang Wannian, head of the expert group on epidemic response and disposal of the National Health and Wellness Committee, said that overall, the epidemic situation in some areas of China is on the rise. Any infectious disease transmission law must go through five stages: introduction, diffusion, rise, peak and decline. Now, in many cities, Omicron infection has entered the rising period, but some cities are still in the spreading period. Generally speaking, respiratory infectious diseases peak faster in cities than in rural areas. Judging from the crowd, people who often go out are generally the first wave of infected people. In contrast, people who go out less, such as the elderly, are later. It peaks in a specific month, and different cities need to be distinguished. Prevention and control measures and people's immune level are both influencing factors. To judge whether the epidemic has reached a tense stage, there are several parameters worth considering: First, the occurrence of severe diseases. The second is a run on medical resources.