CRP and COVID-19: We evaluated in the same COVID-19 patients (1st and 2nd wave), CRP and LDH which showed the following results: CRP (mg/L) 17.3 (8.5–59.3) and 6.3 (2.3–17.6) (P<0.0001); LDH (IU/L) 241.5 (201–345) and 195 (174–228) (P<0.001), median (interquartile range) respectively.