Epidemics are mainly caused by infectious pathogens, the speed of transmission is closely related to the type of pathogens and the control measures of the epidemic, if the virus itself is easy to spread, control measures are more loose, may cause hundreds of thousands of people infected within a day. When the virus itself is not easy to spread, control measures are rigorous, and the public’s awareness of prevention and control is relatively high, the epidemic is not easy to spread, and the speed of transmission will not be fast, or even 0. However, when the virus itself is easy to spread, control measures are more lax, and the public’s awareness of prevention and control is weak, it will result in the massive spread of the epidemic, which may cause hundreds of thousands of infections in one day, or even more. Therefore, during the epidemic, all staff should fight the battle of epidemic prevention and control, improve personal awareness of prevention and control, do not go out non-essential, and actively cooperate with the management personnel to reduce the speed of the spread of the epidemic and the risk.