The harm caused by the new coronavirus includes clinical symptoms as well as sequelae, so be careful to wear a good mask when you go out and don’t go to places where people gather. 1. Clinical symptoms: infection with the new coronavirus can lead to new coronavirus pneumonia, with fever, dry cough and fatigue as the main manifestations. Some patients may have nasal congestion, runny nose, sore throat, loss of smell and taste, conjunctivitis, myalgia and diarrhea. In severe cases, respiratory distress and/or hypoxemia may appear one week after the onset of the disease, and in severe cases, acute respiratory distress syndrome, septic shock, uncorrectable metabolic acidosis, hemorrhagic coagulation dysfunction, and multiorgan failure may occur rapidly. Very few patients may also have central nervous system involvement and limb ischemic necrosis and other manifestations. It is worth noting that heavy and critical patients may have low or moderate fever during the course of the disease, or even no obvious fever. 2. Sequelae: Patients cured after infection with the new coronavirus may also experience sequelae such as pulmonary fibrosis, hair loss, headache, insomnia, taste/smell disorders, muscle aches, joint pains, respiratory difficulties, memory loss, easy fatigue, etc., but most of them do not have any sequelae. The new coronavirus is more harmful to the human body, usually pay attention to diligent hand washing, diligent disinfection, wear a good mask, avoid places where people gather. [Tip] This article refers to “new coronavirus pneumonia, new coronavirus pneumonia”, etc., has been December 26, 2022, the National Health Commission issued a notice to change the name to “new coronavirus infection”.