为探讨丁型肝炎病毒母婴垂直传播，我们采用酶免疫测定法（EIA）检测长春地区50例乙型肝炎病毒标志物（HBV－M）阳性孕妇血清及其新生儿脐血清中丁型肝炎病毒标志物（HDV－M）。结果，孕妇血清HDV-M阳性8例，阳性率为16％（8／50），新生儿脐血清HDV－M阳性2例，阳性率为4％（2／50）。表明长春地区确有丁型肝炎病毒（HDV）感染，且HDV可通过胎盘垂直传播给胎儿。 In order to investigate the vertical transmission of hepatitis D virus (HBV) to mother and baby, we detected the hepatitis B virus (HBV-M) positive pregnant women in Changchun area by enzyme immunoassay (EIA) Markers (HDV-M). Results: The positive rate of HDV-M in pregnant women was 8% (8/50). The positive rate of HDV-M in neonates was 4% (2/50). This indicates that there is indeed a hepatitis D virus (HDV) infection in Changchun and that HDV can be transmitted vertically to the fetus through the placenta.