RESUMO
To estimate the frequency of Rubella seropositivity among pregnant women and thereby getting an estimate of seronegative women who should eventually be immunized against Rubella. A blood sample of 100 consecutive pregnant women coming for their first antenatal check-up at Shifa International Hospital, Islamabad, was collected in the year 2002. Enzyme-Linked immunosorbent assay [ELISA] technique was used to detect IgG antibodies against Rubella. Out of 100 pregnant women 61[61%] were positive for rubella [IgG antibodies] in the first trimester of pregnancy. Mean age of the study participants was 27 ' 3.27 years. Twenty-five [25%] women were primigravida, while 75 [75%] were multigravida. Majority of the women were housewives belonging to middle and lower middle socioeconomic class. We found 61% women had positive Rubella antibodies during first antenatal visit. Nearly 40% who were negative should be immunized against rubella, preferably before conception