The quantification of DC recruiters IP-10 (CXCL10), MIP-3α (CCL20) and BRAK (CXCL-14) by ELISA or qPCR in P2Y2+/+ and P2Y2−/− BALFs confirmed lower expression of BRAK at day 10 post-infection in the P2Y2−/− BALFs compared to P2Y2+/+ BALFs. Here, CCL20 is linked to infection.