The early clinical symptoms of novel coronavirus pneumonia are fever, dry cough, malaise, and in a few cases, decreased or lost sense of taste and smell, and in rare cases, nasal congestion, runny nose, sneezing, sore throat, and diarrhea. In the early stages of the flu, the main symptoms are sneezing, runny nose, nasal congestion, and occasionally fever, but changes in the sense of smell and taste are not obvious, and diarrhea is rare. The symptoms of dry cough are rarely seen in common colds. Because of the similarity of the symptoms, it is also important to pay attention to the symptoms of nasal congestion, runny nose and sneezing during the high epidemic period and go to the hospital as soon as possible for a novel coronavirus pneumonia nucleic acid test for a clear diagnosis.