Academician Li Lanjuan of the Chinese Academy of Engineering said that alcohol should not be sprayed on the whole body. Viruses are not very resistant to the outside world, so 75% alcohol can destroy them, but such disinfection methods are only applicable to objects that may be contaminated, the human body does not need to use such methods to disinfect. Since people are exposed to the outside world mainly with their hands, rinsing with running water and washing hands more often is the most important approach. During epidemic prevention and control, many people will overstate the actual danger of the epidemic due to anxiety, fear, and panic, to the detriment of epidemic prevention and control. The cognition of epidemic prevention and control should be scientific, and one should understand the epidemic objectively and rationally and cooperate well with epidemic prevention and control.