Overall, there was a positive correlation between RV RNA levels and induction of both IFNB1 mRNA (r = 0.69, p < 0.001) and IL28 mRNA (r = 0.71, p < 0.001), and this relationship was not affected by asthma status (Figures 4A and 4B; interaction terms p = 0.36 for IFNB1 and p = 0.54 for IL28). Here, IFNB1 is linked to asthma.