Figure 1.

Growth kinetics of L. pneumophila and L. pneumophila-infected A. castellanii in lungs of A/J mice (A); F. novicida and F. novicida-infected A. castellanii in lungs (B), liver (C), and spleen (D) of Balb/c mice. At different time points after intratracheal infection of mice, organs were removed for determination of the number of bacteria (cfu) by plating serial dilutions on agar plates. The error bars represent standard deviations of triplicate samples and the results shown are representative of three independent experiments, ^*p < 0.05.