CD25 expression was higher on the DbNP366‐ and DbPA224‐specific T cells compared to KbPB1703 and DbPB1‐F262 ‐specific T cells 5 and 6 days after infection, indicating that within the CD25+CD43+ subset, the CD25 expression level varies between the different epitopes (Figure 2k). This evidence concerns the gene SPN and infection.