Fig. 1.
Clinical features of vaccinated and unvaccinated COVID-19 patients requiring hospitalization. Comorbidity index (A), serum titers of ferritin (B), lactate dehydrogenase (C), C-reactive protein (D), interleukin-6 (E), D-dimer (F), and WHO COVID-19 severity index of 36 vaccinated (blue dots) and 29 unvaccinated (red dots) hospitalized COVID-19 patients (G). (H) Percentages of vaccinated and unvaccinated COVID-19 hospitalized patients who developed pneumonia, on a total of 65 patients. (I) Percentages of vaccinated and unvaccinated COVID-19 hospitalized patients who deceased, on a total of 65 patients. Mean values are represented as black lines. *P < 0.05 and ***P < 0.0005 calculated with Mann–Whitney U test and χ2 test