Fig. 3From: Th17 responses are not altered by natural exposure to seasonal allergens in pollen-sensitive patientsChanges in CD4 memory cell subsets during pollen season. Among CD4 cells the following memory cell subsets were separated: naïve (CD45RA+ CCR7+), central memory (CD45RA− CCR7+), effector memory (CD45 RA− CCR7−), CD45RA+ effector (CD45RA+ CCR7−). Cytometric example (a) and changes in the percentages of the subsets (b) are shown. V1—before allergy season, V2—during allergy season immediately following the appearance of symptoms, V3—2 weeks after onset of symptoms, CTRL—control group; data are shown as mean ± SEMBack to article page