IL10 and hemophagocytic syndrome: Interestingly, other studies showed that the polymorphism of rs1800896 in the IL-10 gene may be related to the incidence of EBV and Epstein–Barr virus associated with hemophagocytic lymphohistiocytosis (EBV-HLH) in children, and the AA genotype and A allele of both sites may be the susceptible risk factors for EBV-HLH [38].