IL6 and infection: Some authors believe that it is an immunological response to an infection by organisms (such as Cytomegalovirus Epstein-Barr virus, Escherichia coli, interleukin-6 overexpression, Helicobacter pylori, herpes simplex virus, Pseudomonas veronii, and actinomycetes) or inflammatory process by exaggerated response after abdominal surgery, trauma, radiotherapy, chemotherapy, and steroid use [9, 11–13].