Fig. 2.

Comparison of interkeukin (IL)-27 plasma concentrations between Epstein–Barr virus (EBV) and cytomegalovirus (CMV)-seropositive and -seronegative donors. The seropositivity for EBV and CMV was determined by indirect enzyme immunoassay and bioELISA, respectively, and IL-27 concentration by enzyme-linked immunosorbent assay (ELISA). (a) EBV-seropositive (n = 380) and -seronegative (n = 63) demonstrate no difference in IL-27 concentrations. (b) CMV-seropositive (n = 240) and -seronegative (n = 233) demonstrate no difference in IL-27 concentrations. P-values determined by Mann–Whitney U-test.