IL7 and Decreased total leukocyte count: The various stages of infection are characterized by high levels of inflammatory markers such as CRP, interleukins (IL-2, IL-6, IL-7), LDH, ferritin, lymphocytopenia, thrombocytopenia, leukopenia, elevated procalcitonin, D-dimer, prothrombin, fibrinogen, and others [24].