Fig. 3. : survival curve for the assessment of pathogenicity. (A) Swiss female mice (n = 3) after infection with 5 x 104 Ck2, Ck3 or Pg1GToxoplasma gondii tachyzoites or the RH, ME49 or VEG clonal lineage controls; (B) Swiss female mice (n = 3) after infection with five cysts of the Ck2, Ck3, Pg1 or ME49 strain; (C) C57BL/6 female mice (n = 3) after infection with five cysts of the Ck2, Ck3, Pg1 or ME49 strain (***p < 0.001; **p < 0.01; *p < 0.05).