Fig. 3

Three different patients with positive COVID-19. a 54-year male was complaining of SOB, fever, and cough. Initial chest X-ray showed bilateral mid and lower zonal air space consolidation opacities more on the left side with neither perihilar nor peripheral distribution (arrows). The severity score was 2 for the right lung and 3 for the left lung, so TSS was 5. b 36-year male was complaining of fever. Initial chest X-ray showed right perihilar (long arrow) and left neither peripheral nor perihilar air space consolidation opacity (short arrow) of the mid and lower lung zone. The severity score was 2 for each lung, so the total severity score was 4. c 27-year male was complaining of cough and fever. Initial chest X-ray showed right small midzonal pulmonary nodules (short arrow), left midzonal neither peripheral nor perihilar air space consolidation opacities are seen (long arrows), and the severity score was 1 for each lung, so TSS was 2