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Heatmaps showing immunosignatures for volunteers who donated blood every day for 32 days. Left: heatmap of all 10,000 peptides for Volunteer #2 (red bar) and Volunteer #3 (blue bar). Daily immunosignatures are shown in order from left to right, from Nov. 9, 2013 to Dec. 10, 2013. Orange and cyan bars correspond to blood donated on 1 day in 2008, 2009, 2010, 2011, and 2012 for Volunteers #2 and #3, respectively. Volunteer #3 received the seasonal influenza vaccine on Nov. 17, 2013.
