Figure 1

M. avium chronic infection does not alter mice body weight even though different susceptibilities to infection are observed. Spleen bacterial load was determined at 4wpi (A). Body weight of Balb/c (B), C57BL/6 (C) and CD1 (D) female mice were assessed in non-infected and 4 weeks infected mice. Each bar represents the mean + SEM of 15–24 mice per group, from 1 of 3 independent experiments. *p < 0.05.