The levels of CRP of COVID-19 patients classified further according to disease severity on admission, as moderate (nCoV-moderate) (male = 10, female = 18) and severe (nCoV-severe) (male = 3, female = 5) comparing with healthy crew (as HC) (male = 7, female = 14) and common viral CAP cases (as VP) (male = 30, female = 24). Each bar and error bar represents mean value and standard error. Comparisons were done by the Mann–Whitney U test. **P<0.01; ***P<0.001.