在孕期进行免疫接种可保护孕妇、胎儿及婴儿免受可通过疫苗预防的疾病之苦。母体中的免疫球蛋白G可穿过胎盘进行主动转运,在新生儿和婴幼儿对疫苗的主动免疫发挥效益之前,为其提供被动免疫保护。目前,推荐为孕妇接种流感灭活疫苗、破伤风类毒素和无细胞百日咳疫苗。其他几个疫苗,包括肺炎球菌疫苗、B型链球菌疫苗、b型流感嗜血杆菌疫苗和脑膜炎球菌疫苗在孕期的免疫效力进行 Immunization during pregnancy protects pregnant women, fetuses and infants from the disease that is vaccine-preventable. The maternal immunoglobulin G, which is actively transported across the placenta, provides passive immunization to newborns and infants before they benefit the vaccine’s active immunity. At present, it is recommended that pregnant women be vaccinated against influenza, tetanus toxoid and acellular pertussis vaccine. Several other vaccines, including pneumococcal vaccine, Streptococcus B vaccine, Haemophilus influenzae type b and meningococcal vaccine immunization efficacy during pregnancy