IL6 and influenza: Among influenza patients, there were significant but weak correlations between CoQ10 levels and IL‐2 (r = −.30, P = .04), TNF‐alpha (r = −.35, P = .01) and VEGF (r = .38, P = .007), but no correlation with IL‐6, IL‐10, VCAM or influenza severity of illness score (all P > .05).