Faster waning of the rubella-specific immune response in young pregnant women immunized with MMR at 15 months.
Wan-Ju KungChing-Tang ShihYung-Luen ShihLing-Yao LiuChiou-Huey WangYa-Wen ChengHsueh-Chiao LiuChing-Chiang LinPublished in: American journal of reproductive immunology (New York, N.Y. : 1989) (2020)
The rubella seropositivity rate and rubella IgG levels were low among young women aged 19-23 years, especially in cohorts immunized at younger age. As rubella immunity wanes over time, a third dose of MMR may be a protective strategy for women who conceive later in life.