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Effect of LPS exposure on the IFN-γ/IL-4 ratio (per CD3+CD4+ cells) during in vitro stimulation. The ratio between IFN-γ, as the prototypic Th1 cytokine, and IL-4, as the prototypic Th2 cytokine, was calculated after in vitro whole-blood stimulation with αCD3/αCD28 or SEB after LPS exposure in vivo. Data are means ± SE. ∗, P < 0.05 in comparison with the baseline, as determined by the Wilcoxon test.
