We measured Type 1 (IFN-γ, TNF-α, IL-2), Type 17 (IL-17, IL-22), and proinflammatory cytokines (IL-1α, IL-1β) in QuantiFERON (QFT) supernatants from TBI individuals with (TBI+Hel+) and without (TBI+Hel−) infection. This evidence concerns the gene IL2 and infection.