A compound attribute that is the ratio of amount of C-C motif chemokine 5 (human) in blood to amount of C-X-C motif chemokine 3 (human) in blood. The trait is CCL5/CXCL3 protein level ratio in blood (OBA_2054710, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of C-C motif chemokine 5 (human) in blood to amount of C-X-C motif chemokine 3 (human) in blood.