A runny nose is medically known as katha symptoms, and this new coronavirus pneumonia is characterized by a relatively rare runny nose symptom and predominantly inflammation of the lungs. That is, it is mainly characterized by a dry cough, fever, malaise, etc., and its symptoms of upper respiratory tract infection are not obvious. Therefore, if you simply have a runny nose and no fever, it may not be novel coronavirus pneumonia. Source: Dr. Yurai