While there are several other chemokines known to recruit CD4+ T cells, a previous study showed that reduced production of IEC-derived chemokines (such as CCL25) during C. rodentium infection had little impact on CD4+ T cell recruitment at early stages (7 DPI) but only impacted CD4+ T cell numbers at later stages of infection (14 DPI) [47]. This evidence concerns the gene CCL25 and infection.