FIG 8.

Effect of murine IFN-γ on the growth of C. pecorum IPA, C. pecorum E58, and C. trachomatis D in mouse cells. McCoy cell monolayers pretreated with murine IFN-γ (1,000 U/ml) were infected with the three strains at an MOI of 0.5. The cultures were harvested at 36 hpi, and the viable yields were determined by measuring inclusion-forming units that formed infections in a new monolayer of McCoy cells. The error bars represent SD of the means of three replicates (n = 9). Statistics were determined using unpaired two-tailed t tests. ***, P < 0.001 versus untreated controls.