In response to infection, four interleukins (IL1A, IL1B, IL8 and IL16), their receptors (IL1 receptor like 1, IL1 receptor 2, IFN-lambda receptor 1, cytokine receptor like factor 1) and two acute phase proteins (Serum amyloid A 1 and 2) were differentially expressed. The gene discussed is IL16; the disease is infection.