Rumor identification: Salt water gargle can not prevent the new coronavirus. Rumor analysis: 1, the method of gargling with salt water can prevent gum inflammation, stomatitis, dental caries, mostly used for the treatment of allergic rhinitis, clean mouth, nasal cavity, throat, etc., and relieve pharyngitis, prevention of allergic diseases is also more effective, there are no research results suggesting that the use of salt water gargle on the new coronavirus has a killing effect. 2, because the new coronavirus invasion site in the respiratory tract, and salt water gargle can only clean the mouth, and can not clean the respiratory tract, so it can not destroy the new coronavirus. 3, some studies have shown that frequent gargling with salt water may make it easier for bacteria to multiply. Because the use of salt water gargle to kill oral bacteria at the same time, but also destroy the oral mucosa, and therefore create the conditions for the rapid recovery of bacteria. Special tips: At present, to prevent the new coronavirus infection, the public can take protective measures such as going to less crowded places, wearing masks outside, keeping indoor ventilation, eating a reasonable diet, quitting smoking and limiting alcohol, and exercising in moderation. In addition, you can also use chlorine disinfectants for home disinfection, such as 84 disinfectant or 75% alcohol to wipe the surface of commonly used furniture and other objects.