Cytokine release after immunization with SialylTn–mAb17-1A vaccine with or without QS-21 adjuvant. Rhesus monkeys (four animals per group) were immunized with SialylTn–mAb17-1A vaccine with (a, c) or without (b, d) QS-21 adjuvant at d1, 15, 29, 57 and re-boosted at d226. PS and IS were analyzed for cytokine release by xMAP technology (Luminex). Cytokine levels (pg/ml) measured in serum are shown (mean and SD). Arrows show immunization time points