Patients with colds should be differentiated from patients with novel coronavirus pneumonia in terms of symptoms, including the following. First, fever is very rare in patients with colds, while new coronavirus pneumonia is very common and tends to be predominantly low-grade fever, with progressive exacerbation of high fever after 3-5 days. Secondly, headache is very rare in cold patients, while headache is more common in patients with new coronavirus pneumonia, and mild generalized pain is common in cold patients, while generalized pain is very common in patients with new coronavirus pneumonia. Thirdly, patients with colds sometimes feel tired or weak, while patients with neocoronary pneumonia often feel tired, weak and limbless. Fourthly, other symptoms including nasal congestion are more common in cold and flu, while neo-coronary pneumonia is less common, including sneezing and sore throat are more common in cold and flu patients, while neo-coronary pneumonia is less common.