Neocoronavirus can theoretically be transmitted through sewers, but there have been no such cases. Novel coronavirus can be transmitted through the air and other means, and it is also found in the body fluids, urine and feces of patients with novel coronavirus pneumonia, so when the excreta of patients with novel coronavirus pneumonia enter the sewers, it may be transmitted through the sewers. After coming into contact with a patient with novel coronavirus, it is necessary to carry out timely isolation and nucleic acid testing in accordance with the regulations. It is also necessary to pay attention to disinfection in daily life, wearing masks when going out, washing hands frequently and reducing gatherings, all of which can effectively avoid infection with novel coronavirus. Because of the new coronavirus infectious ability is strong, in daily life to do a good job of protection, to avoid infection, such as physical symptoms, should do a good job of protection measures to the hospital in a timely manner, consult a physician to guide the treatment. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.