Laboratory findings were notable for marked systemic inflammation (CRP 199.5 ± 162.5 mg/L; IL-6 1106.5 ± 1065.5 pg/mL), neutrophilia (87.45 ± 8.45%) with severe lymphopenia (0.49 ± 0.08 G/L; 9.15 ± 7.45%), elevated proBNP (9227.5 ± 481.5 ng/L) and troponin-T (206.5 ± 120.5 ng/L), and very high procalcitonin levels (27.75 ± 11.1 ng/mL) indicating bacterial co-infection (Supplementary Table S4). Here, IL6 is linked to lymphopenia.