The level of CRP (mg/L) was significantly higher in the ARDS-COVID-19 group [40.3 (6.05–72.60)] when compared to the non-ARDS-COVID-19 [12.30 (5.00–48.00)] and suspected non-COVID-19 [4.330 (1.67–10.90)] groups. Here, CRP is linked to COVID-19.