IL22 and infection: Like WT mice, a high dose infection with T. muris did not result in chronic infection of IL-22, IL-22Rα and IL-28Rα mutant mice; after 32 days of infection, the mice had expelled all worms and had high levels of parasite specific IgG1 in their sera that indicated the development of a type-2 response (S2A, S2B and S2C Fig).