Within 1 to 7 days of infection with the new coronavirus, some patients may experience symptoms such as cough, fever, and body weakness, while others may have no obvious discomfort. As the degree of infection varies from patient to patient and the physical condition of the individual is different, it is not possible to determine the exact symptoms that will occur. If the degree of infection is mild, some patients may have no obvious symptoms and are clinically referred to as asymptomatic. If the individual’s physical condition is poor or the degree of infection of the new coronavirus is more serious, the patient may have cough, fever, body weakness, mental fatigue, nasal congestion, runny nose, sore throat, chest tightness and other uncomfortable symptoms. With the development of the disease, severe patients may also experience symptoms such as dyspnea and shortness of breath, and may even induce hypoxemia, acute respiratory distress syndrome and other diseases, which can jeopardize life safety. At present, the main prevalent strain is Omicron, and the infection is dominated by mild and asymptomatic infected patients. At present, home isolation is generally adopted for asymptomatic infected patients and mild cases with home isolation conditions. Symptomatic treatment and disease monitoring are required during isolation management, and timely medical attention is recommended in case of exacerbation of the disease.