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目的：探讨宫内弓到虫（TOX）感染与胎儿宫内发育迟缓（IUGR）的关系。方法：对231例IU-GR应用聚合酶联免疫吸附试验（ELISA）对孕妇血、新生儿脐血及胎盘分别检测，64例TOX阳性。结果：64例孕妇血清中TOX双阳性反应有17例，新生儿脐血双阳性反应有30例，胎盘双阳性有18例。结论：应用ELISA法和PCR—DNA技术检测孕妇血、新生儿脐血及胎盘有临床应用价值。
Objective: To investigate the relationship between intrauterine infection (TOX) and intrauterine growth retardation (IUGR). Methods: 231 cases of IU-GR were detected by polymerase chain reaction (ELISA) on maternal blood and neonatal umbilical cord blood and placenta, 64 cases of TOX were positive. Results: There were 17 cases of TOX double positive reaction in 64 pregnant women, 30 cases of double positive cord blood reaction in neonates and 18 cases of double positive placenta. Conclusion: The clinical application of ELISA and PCR-DNA in the detection of maternal blood, newborn cord blood and placenta has clinical value.