Two alleles of CCL26 upregulated in the ∆gG-ILTV-infected TOCs may also have a role in immune cell recruitment in vivo as elevated levels of this chemokine (along with others) during the early phase of MDV infection in a recent study (79) were speculated to have a role in innate immune response and lymphoid cell migration to the site of infection in chickens. Here, CCL26 is linked to infection.