Rumor identification: Smoking does not prevent new coronavirus infections. Rumor analysis: 1, tobacco contains a large number of chemicals that can destroy the lung defense system: smoking smoke most of the inhaled lungs, destroying the respiratory non-specific immune barrier, not only will increase the probability of respiratory viral infections, but also increase the chances of infection with new coronavirus. 2, smoking will reduce the body’s resistance: smoking can lead to temporary disorders of immune function, no matter how strong the immune function, may give the virus a chance to take advantage of. When the virus invades the body in large numbers in a short period of time, the immunity is reduced due to smoking, which leads to infection of the body. 3, smoking hands constantly in contact with the mouth and nose, can increase the rate of viral infection: when the smoker’s hands are in contact with the infected person’s secretions or items contaminated with the virus, and smoking without washing hands, contact with the mouth and nose is likely to be infected by the virus. Special tips: To prevent the new coronavirus attack, the public needs to improve their own resistance, first of all, smokers need to quit smoking. Secondly, quit drinking alcohol, drink more water, eat high protein, high calorie, high vitamin, low fat, easy to digest food, adhere to the exercise, maintain regular rest and other lifestyle and dietary improvements can also improve the body’s immune function.