CRP and lymphopenia: All five patients had high hypersensitive C-reactive protein levels (i.e., >6 mg/L); 4 (80%) had lymphopenia (<0.8 × 109/L), 4 (80%) had high procalcitonin levels (>0.05 ng/mL), and three had high lactate dehydrogenase levels (>300 U/L) and high D-dimer levels (>0.5 μg/mL); two patients had low total protein and three had low albumin levels.