This study is a prospective observational cohort study. All the pregnant women and newborns of both or one of the couples who gave birth in Ditan hospital were collected as the observation group, and the pregnant women and newborns of both husband and wife who gave birth in our hospital without new crown vaccine during pregnancy were collected as the control group. The incidence of adverse events during pregnancy of the two groups and the incidence of intrauterine development and congenital malformations of the two groups were observed to observe the physical and intellectual development of children in the two groups at the age of 1 year, and to explore the safety of perinatal neocrown vaccination.
All the pregnant women and newborns of both or one of the couples who gave birth in Ditan hospital were collected as the observation group, and the pregnant women and newborns of both husband and wife who gave birth in our hospital without new crown vaccine during pregnancy were collected as the control group. The incidence of adverse events during pregnancy of the two groups and the incidence of intrauterine development and congenital malformations of the two groups were observed to observe the physical and intellectual development of children in the two groups at the age of 1 year, and to explore the safety of perinatal neocrown vaccination.