Should We Consider another Booster Dose of Measles Vaccine?

Background: To date, 36 years has passed since the beginning of measles vaccination; the disease is still circulating around the world, threatening lives of human beings especially in developing countries. In recent years, we have confronted measles in previously vacci-nated adults from all over the country. Objective: To find out if there is a need for changing our routine measles vaccination schedule. Methods: In a cross-sectional study, 241 medical students (127 males and 114 females) were randomly selected. We measured the titer of antibody against measles in their blood using ELISA. Results: Ninety-eight (40.7%) out of 241 had positive, 39 (16.2%) borderline, and 104 (43.1%) negative antibody titers. Conclusion: In this study, only 40.7 % of the previously vaccinated students had positive antibody titers, while the rest remained suscep-tible to contract wild measles virus