Persistence of Anti-Rubella Immunoglobulin G Antibody Titers in Young Adults Involved in a Short-Term Periodic Immunization in Japan.
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| Abstract |
In Japan, several rubella outbreaks in adults have erupted due to insufficient immunity against rubella virus (RUBV). Although selective immunization is being promoted along with routine rubella vaccination as its eradication strategy, serosurveillance against RUBV needs to be implemented in the generations corresponding to the vaccination transition period. In this study, a survey of anti-rubella immunoglobulin G (IgG) antibody titers was conducted among young adults involved in the transitional periods of the routine rubella vaccination program. Specifically, serosurveillance was performed in 370 healthy young adults aged 18-20 years, wherein their serum samples were analyzed using an enzyme immunoassay to determine rubella-specific IgG antibody titers. Although multiple regression analysis revealed significant differences only in medical history, more than 90% of participants exhibited seropositivity, excluding those who received a single-dose vaccine alone. Based on elapsed periods after the last vaccination, rubella-specific IgG antibody titers in less than a 6-year period were higher than those in more than a 10-year period. Although almost all study participants in the transitional period had seropositivity, the results may indicate that this persistence is related to past rubella outbreaks.
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| Authors | Hiraku Sasaki, Tomoko Fukunaga, Ai Asano, Mayu Tsumita, Yoshio Suzuki, Nobuto Shibata |
| Journal | Japanese journal of infectious diseases (Jpn J Infect Dis) Vol. 74 Issue 5 Pg. 473-476 (Sep 22 2021) ISSN: 1884-2836 [Electronic] Japan |
| PMID | 33642429 (Publication Type: Journal Article) |
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