Daily treatment with atenolol (2.0 mg/kg) for 7 days had no significant effect, at any date post-infection, on the level of IL-1β neither in the infected paws nor in the non-infected paws of mice infected with L. major as compared to those infected with L. major but not treated with atenolol (all p values > 0.05) (Figures 7B). Here, IL1B is linked to infection.