Carr et al. performed a study in the United Kingdom that evaluated the NEWS2 for Covid-19, which showed that it had a poor predictive power for severe cases of COVID-19 (AUC = 0.628) but with the addition other factors such as age, CRP, neutrophil count, estimated GFR and albumin, its predictive power increased (AUC = 0.753). Here, CRP is linked to COVID-19.