Figure 1.
Susceptibility of BALB/c mice and C57BL/6 mice following Chlamydia muridarum infection. Groups of eight mice were intranasally inoculated with 2000 inclusion-forming units (IFU) of C. muridarum and body weight changes were monitored every 2 days (a). Mice were killed at day 12 post-infection and IFU in lung tissue were titrated as described in the Materials and methods (b). The data represent the mean ± SD from eight individual mice. One of three independent trials with similar results is shown. *P < 0·05.