Strengthening antenatal care as a platform for maternal immunization is a priority of the
World Health Organization (WHO). Systematic surveillance for adverse events following
immunization (AEFI) in pregnancy is needed to identify vaccine safety events. We sought to
identify active and passive AEFI surveillance systems for pregnant women and infants.
Representatives from all National Pharmacovigilance Centers and a convenience sample of
vaccine safety experts were invited to complete a 14-item online survey in English, French or …

Background. Expansion of maternal immunization programs is a key priority of the World
Health Organization (WHO). Systematic surveillance for adverse events following
immunization (AEFI) in pregnancy is needed to capture rare serious adverse events,
particularly given the paucity of safety data in this population. A systematic review identified
only 16 reports of AEFI surveillance programs for pregnant women and their offspring. The
study objective was to identify existing but unpublished active and passive AEFI surveillance …