However, the C-C motif chemokine ligand 2 (CCL2) has not been studied in Aeromonas, despite it being an interesting chemokine well studied in infections produced by other bacteria like Vibrio spp., where it plays a role in the recruitment of monocytes, T cells such as CD4+ and CD8+, and dendritic cells (32). This evidence concerns the gene CCL2 and infection.