Routine screening for rubella susceptibility by history of vaccination or by serology is recommended for all women of childbearing age at their first clinical encounter. Susceptible nonpregnant women should be offered rubella vaccination; susceptible pregnant women should be vaccinated immediately after delivery. An equally acceptable alternative for nonpregnant women of childbearing age is to offer vaccination against rubella without screening (see Clinical Intervention). There is insufficient evidence to recommend for or against screening or routine vaccination of young men in settings where large numbers of susceptible young adults of both sexes congregate, such as military bases and colleges. Routine screening or vaccination of other young men, of older men, and of postmenopausal women is not recommended.