Rubella seroprevalence in the first birth cohort reaching fertility age after 20 years of two dose universal vaccination policy in Israel

► We investigated seroprevalence of rubella antibodies among young adults. ► Proportion of seropositive females declined as compared to previous birth cohorts. ► Proportion of seropositive males increased as compared to previous birth cohorts. ► Female immigrants were at higher risk of rubella susceptibility. ► A catch-up vaccination program for females should be considered.