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弓形由是人兽共患病的病原体，亦是孕妇宫内感染致胎儿畸形的五大主要病原体之一。本文随访了52例感染弓形史的孕妇（抗弓形虫的IgG、IgM均为阳性）采取新生儿脐动脉血及胎盘分别测定抗弓形虫抗体及其DNA，两项均为阳性24例，发生率为46．15％，3例畸胎的畸形部位组织均测得弓形虫DNA为阳性。由此提示孕妇感染弓形虫后能通过胎盘垂直感染胎儿，使胎儿发育受损造成不良妊娠结局，给社会带来负担应引起围产医务工作者的量视。
Bow-shaped by the zoonotic pathogens, but also pregnant women intrauterine fetal malformations caused by one of the five major pathogens. Totally 52 pregnant women with history of arcuation (anti-Toxoplasma gondii IgG and IgM were positive), anti-Toxoplasma antibodies and their DNA were detected by umbilical arterial blood and placenta of neonates respectively, both of which were positive in 24 cases. The incidence rate Was 46.15%. Toxoplasma gondii DNA was positive in all the deformities of 3 teratomas. This suggests that pregnant women infected with Toxoplasma gondii can infect the fetus through the placenta vertical, so that poor fetal development results in adverse pregnancy outcomes, to bring the burden on society should be caused by the amount of perinatal medical workers.