CXCL8 and infection: During infection by P. dicentrarchi, several chemokines were DE, including c-x-c motif chemokine ligand 8 (cxcl8) and c-c motif chemokines (ccl) 11, 3, 4, 2 and 20. Cxcl8 was strongly expressed at 1, 2 and 4 hpi, but was DR at 48 hpi, and ccl20 was only UR at 2 hpi.