Interestingly, despite a mild clinical course of the disease, a significant proportion of children presented with increased inflammatory markers (leukocytosis, elevated C-reactive protein, procalcitonin, Interleukin-6 and D-dimer, Table, Supplemental Digital Content 3, http://links.lww.com/INF/F299). The gene discussed is CRP; the disease is Increased total leukocyte count.