The after-effects of Omicron are related to the individual’s physical condition and medical condition, patients may experience loss of smell and taste, etc.. Concomitant symptoms may include malaise, dry cough, fever, limb pain, etc., similar to those of influenza virus infection, with mild symptoms predominating. Omicron is a mutated strain of Neococcal Pneumonia Virus (NCPV) detected from the case samples. Sequelae of the disease vary among patients due to individual’s physical condition, medical condition, and treatment effect. Common disorders include loss of smell, loss of taste, and pulmonary dysfunction. Most patients infected with Omicron are characterized by fever, dry cough, and malaise. Some patients may also present with nasal congestion, runny nose, sore throat, conjunctivitis, myalgia and diarrhea. Although the symptoms of infection with the omicron strain show less severe manifestations, the infectiousness, pathogenicity and other indicators of harm of the omicron strain may be stronger. Protection should be taken, always wash your hands regularly, wear a mask, and go to less crowded places. If symptoms occur, you should go to the hospital in a timely manner, after the cause of the disease is clear to give the appropriate treatment and therapy. Tips] In this article, “new coronary pneumonia, new coronary virus pneumonia”, etc., has been December 26, 2022, the National Health Commission issued a notice to change the name to “new coronary virus infection”.