A correlation between CRP and disease severity was shown by Wang et al., 2020 using logistic regression analysis revealed that CRP was substantially linked with worsening of non-severe to severe COVID-19, with an area under the curve of 0.844 (95% confidence range, 0.761–0.926) and an appropriate threshold value of 26.9 mg/l [40]. Here, CRP is linked to COVID-19.