CXCL8 and infection: The analysis showed that detectable levels of GRO, GRO-α, RANTES, and IL-8 were present in the media of mock-infected H69 cells at 24 h p.i. RRV infection resulted in higher levels of IL-6 and IL-8 accumulation in the media and slightly higher levels of IL-7, IL-10, GRO, and GRO-α at 24 h p.i. as compared to mock infection (Figure 2).