Infection with New Crown Omicron mainly includes cough, sore throat, abnormal taste, abnormal smell, fever, and generalized weakness. Omicron belongs to a mutated strain of New Crown virus, which causes mainly respiratory and systemic symptoms after infection. Common respiratory symptoms include cough, sore throat, abnormal taste, abnormal smell, and in a few cases, dyspnea. Systemic symptoms include fever, malaise, nausea and abdominal distension. Early stage of Omicronjon Novel Coronavirus Pneumonia is similar to the symptoms of common upper respiratory tract infections and lacks a certain degree of specificity. It is recommended that the appropriate people timely injection of the new coronary vaccine, good personal protection, wear masks and wash hands frequently, and find abnormal symptoms, to seek medical attention. Tips] In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.