IL10 and infection: Moreover, analysis of IL-10 protein expression in the mice jejunum by ELISA revealed an increase in IL-10 production after infection with E. papillata reaching 104.27 ± 8.41 pg/ml, whereas KLRE treatment had significantly decreased IL-10 protein level (62.18 ± 3.63 pg/ml) at the 5th-day p.i. compared to the infected group (Figure 15).