Objective To create a mouse model for stable vertical transmission of the RH strain of Toxoplasma gondii. Methods Pregnant BALB/c mice were randomly divided into 6 groups(A-F)on day 8 of gestation.Group A served as the normal control group,and pregnant mice were intraperitoneally injected with 0.2ml of sterile PBS.Groups B-F were infected groups.Pregnant mice were intraperitoneally injected with T.gondii at a dose of 10,20,40,or 80 tachyzoites/0.2ml.Changes in body weight,behavioral changes,the spontaneous ...