Do the oral symptoms of COVID-19 represent the beginning of the disease?

      Comments Off on Do the oral symptoms of COVID-19 represent the beginning of the disease?

The COVID-19 virus causes many symptoms, and because of the large number of patients infected with the disease, the diagnosis is usually based on clinical findings and guesswork. For example, a 45-year-old woman developed an irregular ulcer on the back of her tongue. After 10 days, the wound healed without leaving any scars.