🔹Common symptoms of covid-19 and lung cancer: * cough * shortness of breath * inflammation in the lungs How can you differentiate? covid-19 diseases have some symptoms, such as - fever, loss of taste and smell. Cough continue 2 or 3 weeks in coronavirus. But in lung cancer cough continue for a long time (more than 3 weeks). İn the later stages is observed a bloody cough.