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Plasma IP-10 levels following placebo inoculation and HRV challenge (panel A) and following two HRV challenges separated by one week time (panel B). Panel C shows the peak levels in the first four days post-challenge in the group that received placebo, followed by a HRV challenge (bar 1 and 2) and in the group that were challenged with HRV twice (bar 3 and 4). Data are represented as geometric mean and 95% CI. Lower detection limit was 156 pg/mL.
