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Mouse survival rates with T. gondii genotype China 1. Virulence of T. gondii type China 1 isolate TgCtgy5 was monitored in mice. Survival of KM mice was monitored for 45 d following intraperitoneal inoculation with different doses of tachyzoites indicated. Ten parasites of TgCtgy5 isolate killed 100% mice within 15 d.
