How long is the incubation period of COVID-19? What are the serious symptoms after COVID-19 infection

Based on the current epidemiological investigation, the incubation period of novel coronavirus is generally 1-14 days, and generally 3-7 days. There are reports that some virus infected individuals may have an incubation period of up to 21 days. This is closely related to the immune system of infected individuals. When COVID-19 infection is serious, hypoxemia and dyspnea will appear, even metabolic acidosis, organ failure, acute respiratory distress syndrome, coagulation dysfunction, septic shock. Mild patients may experience adverse symptoms such as fatigue, dry cough, fever, and sore throat. Early detection and treatment should be achieved to control the progression of the disease and improve its quality. If symptoms similar to a cold occur, undergo nucleic acid testing and take protective measures in daily life.