Although there were no difference in the CFU counts from all groups of cell lysates collected at 4-h post-infection (Fig. 8H), the percentage of intracellular bacterial killing was remarkably higher in BEVpH8-treated Raw264.7 cells, compared to control cells without pre-inhibition of FPR1/2 by Boc2 (Fig. 8I), but such BEVpH8-induced increase of bacterial killing rate was significantly diminished in Raw264.7 cells upon pre-treatment with Boc2 (Fig. 8I). This evidence concerns the gene FPR1 and infection.