Interestingly, basolateral expression of IL-8 was beyond the upper limits of detection for the assay system between 6 h and 24 h pi following infection by any virus and in mock-treated cells; however, lower levels of basolateral IL-8 were detected for MI/06 and TX/02 infected cells at 2 h pi (Fig. 7D). Here, CXCL8 is linked to infection.