Comparing the rubella seronegativity in pregnant women who received one dose of rubella vaccine at different ages in Taiwan |
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| Affiliation: | 1. Department of Family Medicine, Fooyin University Hospital, Pingtung, Taiwan;2. Department of Laboratory Medicine, Fooyin University Hospital, Pingtung, Taiwan;3. Department of Medical Laboratory Science and Biotechnology, Fooyin University, Kaohsiung, Taiwan;4. Department of Education and Research, Fooyin University Hospital, Pingtung, Taiwan;1. Department of Epidemiology and Statistics, School of Public Health, Jiangsu Key Laboratory and Translational Medicine for Geriatric Disease, Medical College of Soochow University, Suzhou 215123, China;2. Suzhou Industrial Park Centers for Disease Control and Prevention, Suzhou 215123, China;1. Public Health Agency, 12-22 Linenhall Street, Belfast, Northern Ireland BT2 8BS, UK;2. Health Protection Surveillance Centre, 25-27 Middle Gardiner Street, Dublin 1 DO1 A4A3, Ireland;1. Department of Pediatrics, Iizuka City Hospital, Iizuka, Japan;2. Nagai Pediatric Clinic, Takamatsu, Japan;3. Ito Pediatric Clinic, Kurume, Japan;4. National Hospital Organization, Mie Hospital, Tsu, Japan;5. Laboratory of Viral Infection, Kitasato Institute for Life Sciences, Tokyo, Japan;6. The Committee of Immunization of the Society of Ambulatory and General Pediatrics of Japan, Japan;1. Seoul National University Hospital, Republic of Korea;2. Seoul National University College of Medicine, Republic of Korea;3. Seoul National University Bundang Hospital, Republic of Korea;4. Kosin University Gospel Hospital, Republic of Korea;5. Chungnam National University Hospital, Republic of Korea;6. Jeju National University Hospital, Republic of Korea;7. Gyeongsang National University Changwon Hospital, Republic of Korea;8. Ajou University Hospital, Republic of Korea;1. School of Bioresources and Technology, King Mongkut''s University of Technology Thonburi, Bangkok 10150, Thailand;2. Pilot Plant Development and Training Institute, King Mongkut''s University of Technology Thonburi, Bangkok 10150, Thailand |
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| Abstract: | IntroductionVaccination is the best strategy to prevent rubella and congenital rubella. The aim of our study was to assess the immunity to rubella and determine rubella virus antibody titers in pregnant women who were offered a single dose of rubella vaccine at different ages of their lives.MethodsA total 15,067 rubella IgG antibody test results for Taiwanese pregnant women who received routine prenatal checkup at Fooyin University Hospital from 1999 to 2014 were analyzed in this study. The women were divided into five birth cohorts in order to compare their rubella seronegativities and antibody titers according to the different period of rubella vaccination policy in Taiwan.ResultsThe total rubella seronegativity rate was 11.2% (95% CI: 10.7–11.7%) and the mean rubella antibody titers was 51.0 IU/mL (SD = 54.7 IU/mL). The junior school cohort has the lowest rubella seronegativity of 7.6% (95% CI: 6.9–8.2%). The seronegativities were significantly high in the preschool cohort and in the 15-month-old cohort, 14.9% (95% CI: 13.2–16.6%) and 14.8% (95% CI: 11.5–18.1%), respectively. The OR values were 2.1 (95% CI: 1.8–2.5, p < 0.001) in the preschool cohort and 2.2 (95% CI: 1.6–2.8, p < 0.001) in the 15-month-old cohort, respectively, against the junior school cohort. Women in the 15-month-old cohort have lowest average rubella IgG titer, 25.4 IU/mL.ConclusionThe total rubella seronegativity rate was 11.2% in all native pregnant women. Women who received one dose rubella vaccine at preschool and 15-month-old have highest seronegativities. The 15-month-old cohort has the lowest average rubella IgG titer. We recommend a revised catch-up immunization policy to women who received one dose rubella vaccine at a younger age. |
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| Keywords: | Rubella Seronegativity MMR vaccine |
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