CSF3R and infection: By contrast, FV3-infected adult frogs possessed significantly elevated Cxcl8a (but not Cxcl8b) mRNA levels, concomitant with increased kidney Gcsfr gene expression (Figure 2B), suggesting that Cxcl8a (but not Cxcl8b) may be involved in the adult frog granulocyte recruitment to this FV3 infection site.