2021 Volume 57 Issue 2 Pages 309-314
We conducted a retrospective study to ascertain the prevalence of rubella antibodies during pregnancy and the postpartum rubella vaccination rate. We targeted 3,322 pregnant women who delivered their infants at our hospital from January 2014 to December 2017. We analyzed the rubella antibody prevalence in pregnant women and the rubella vaccination rate during perpetual hospitalization by comparing the number of deliveries, the presence of infertility treatments, and the age at delivery. We determined a rubella antibody titer of HI ≤ 16 times as low antibody titer. The proportion of pregnant women with low antibody titers was 31.5%, of which the rubella vaccination coverage was 43.6%. The antibody-bearing was high in over 35-year-old pregnant and increased with their age, but the vaccination rate was high in Primiparas. Furthermore, there were certain pregnant women with low antibody titers after infertility treatments. The rubella vaccination rate among pregnant women to prevent rubella infection and congenital rubella syndrome is still low. Therefore, to improve vaccination, an integrated policy from government-private collaborations is needed, and it is also important to raise awareness of vaccination among health care workers.