T1 and T2 cytokine production. Type 1 (left panels) and type 2 (right panels) cytokine production by T1 and T2 cells. T1 and T2 cells were restimulated (or not) with anti-CD3/anti-CD28–coated beads on day 6. Supernatants were collected 24 hours after stimulation, and cytokine production (IFN-γ, IL-2, IL-4, IL-5, and IL-10) was measured using ELISA. Results shown are mean ± SD.