Confluent submerged monolayer of primary AECs, treated with 10 μM of AZM prior infection with HRV-1b for 24 h were assessed for the viral receptor genes, ICAM and LDLR. Azithromycin treatment of primary AECs did not significantly augment basal ICAM gene expression (Figure 2A; −/+ versus −/− respectively). This evidence concerns the gene LDLR and infection.