Up to now, the source of this round of epidemic in Guangzhou has not been found. There are two main reasons for the serious epidemic. The first is that the epidemic area in Haizhu District is in the city center, with concentrated personnel, and the epidemic spread and broke out instantly. The second is that individuals violate epidemic prevention measures, leading to the spillover of the epidemic. Violators must be held accountable, but accountability that breaks out is another matter. The most important thing now is to prevent and control the epidemic.