General doctor in Bangalore Please take care of your health and your family Common symptoms of COVID-19 Symptoms of COVID-19 are variable , but often include fever, cough, fatigue, breathing difficulties, and loss of smell and taste. Symptoms begin one to fourteen days after exposure to the virus. Incubation period of the corona virus The incubation period of COVID-19, which is the time between exposure to the virus and symptom onset, is on average 5-6 days, but can be as long as 14 days. Thus , quarantine should be in place for 14 days from the last exposure to a confirmed case.