Salt water does not kill the new coronavirus. Saline is used for intravenous drips, rehydration, and sodium supplementation. Saline can also be used to flush wounds, which can have the effect of cleaning wounds, but does not have the effect of killing neocoronaviruses. In order to kill neocoronavirus, you can use chlorine disinfectant or a certain concentration of alcohol solution. The use of disinfectant water to kill the new crown virus should pay attention to the safety of people who are allergic to disinfectant water as far away as possible, to avoid inhalation of allergens and allergic reactions, and the use of alcohol solution disinfection should pay attention to fire prevention, to avoid causing fires. In order to prevent the new crown virus infection can be injected with the new crown vaccine, which is an effective preventive measure. In order to kill the new crown virus can not use salt water, to avoid being infected by the new crown virus, in accordance with the norms of disinfection with disinfectant water disinfection, if in the process of elimination of physical discomfort should be timely consultation, the patient should not self-medication.