This retrospective investigation analyzed the role of the cytokines IL1-β, sIL-2R, IL-6, IL-8, IL-10 and TNF-α as potential markers for major post-transplant adverse events including VOD, skin and intestinal GvHD, sepsis as well as bacterial, viral and fungal infections in 61 pediatric patients. This evidence concerns the gene IL10 and fungal infectious disease.