某些病原体经卵或胚胎由上一代直接传播给下一代的传播方式,叫母婴垂直传播。这些疾病可以通过母体的胎盘传播给胎儿,也可在分娩时,母血中的病原体通过婴儿破损的皮肤、粘膜而使孩子得病。母婴垂直传播的常见疾病有以下几种: 乙型肝炎医学科研表明,乙肝的母婴传播好发在妊娠期及分娩时或生后 Some pathogens through the egg or embryo from the previous generation directly transmitted to the next generation of transmission, called mother and child vertical transmission. These diseases can be transmitted through the mother’s placenta to the fetus, but also during delivery, maternal blood pathogens through the baby’s damaged skin, mucous membranes and make the child sick. Common diseases of vertical transmission of mother and child are the following: Hepatitis B Medical research shows that the mother-to-child transmission of hepatitis B occurs in pregnancy and childbirth or after birth