Regarding laboratory findings on admission, the majority of patients had elevated inflammatory markers C-reactive protein (CRP, 141, IQR 91–236 mg/L), procalcitonin (0.46, IQR 0.22–1.59 μg/L) and fibrinogen (5.6, IQR 5.2–6.3 g/L), normal white blood count (WBC, 6.3, IQR 5.0–8.5 × 109/L) but with frequent lymphopenia (relative number of lymphocytes 13%, IQR 9–18% and absolute number of 771 cells/μL, IQR 580–1072/μL) and mild thrombocytopenia (138, IQR 116–165 × 109/L). Here, CRP is linked to lymphopenia.