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Jang HM, Bae S, Jung J, Cho H, Yoon DH, Kim SH. Immunity Against Measles in Korean Autologous Hematopoietic Stem Cell Transplant Recipients. J Korean Med Sci 2024; 39:e224. [PMID: 39048304 PMCID: PMC11263764 DOI: 10.3346/jkms.2024.39.e224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 06/16/2024] [Indexed: 07/27/2024] Open
Abstract
The seropositivity of measles antibodies among 261 autologous stem cell transplant recipients (ASCTs) in Korea, assessed approximately 1-2 years after transplant (median, 11 months; interquartile range, 9-14), was significantly lower than age- and sex-matched control healthcare workers (83.1% [217/261] vs. 90.3% [539/597], P = 0.002). The findings underscore the vulnerability of adult ASCT recipients to measles. Clinicians should prioritize testing for measles IgG after ASCT and consider vaccination for ASCT recipients who remain seronegative 2 years after ASCT.
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Affiliation(s)
- Hyeon Mu Jang
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seongman Bae
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jiwon Jung
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyungwoo Cho
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dok Hyun Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Han Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Lee W, Shin MY, Go E, Lim HC, Jeon JY, Kwon Y, Lee Y, Kim TS, Lee SK, Bahk YY. Seroprevalence of Measles IgG Antibodies in Married Immigrant Women from Multicultural Families in Korea. Infect Chemother 2023; 55:368-376. [PMID: 37503780 PMCID: PMC10551720 DOI: 10.3947/ic.2023.0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/25/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Although an effective vaccine has been available, measles still causes mast morbidity and mortality world widely. In Korea, a small number of measles cases have been reported through exposure to imported cases among young people with vaccine-induced measles immunity. Recently due to international migration including marriage, marriage migrants were the second-largest group of foreign population in Korea. Our study was carried out to obtain positive rate of measles antibody among married immigrant women from 12 countries in 10 Gun-Counties and 6 Cities, Korea. MATERIALS AND METHODS A total of 547 blood samples were collected from maternal multicultural members from 12 countries. The measles-specific IgG antibody was measured by ELISA (Enzyme-linked immunosorbent assay; Enzygnost® Anti-measles virus/IgG, Siemens Healthcare Diagnostics Products GmbH, Marburg, Germany). We performed a simple logistic regression to test whether the measles antibody seroprevalence differed by participant age, location, or country of birth and then calculated the likelihood ratio statistics to determine whether measles antibody seroprevalence differed by country of birth. RESULTS Overall positive measles seroprevalence was 75.3% (95% confidence interval: 71.7 - 78.9). Participants aged 20 - 24 years, 25 - 29 years, and 30 - 63 years has respective seropositivities of 52.5%, 55.3%, and 82.7%. In this study, the geometric mean titers of participants aged 21 - 29 years were slightly lower than those of participants aged over 30 years, which were 1,372 mIU/ml and 2,261 mIU/ml, respectively (average of total participants: 2,027 mIU/ml). CONCLUSION The study provides detailed information about seroimmunity of the married immigrant population in Korea, which is important for measles elimination. Since the 1980s, most vaccine-preventable diseases including measles have been well-controlled. Nevertheless, sporadic measles outbreaks are still reported. Thus, special attention should be paid to the possible importation of infectious diseases such as measles by immigration.
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Affiliation(s)
- Woojoo Lee
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Mi Yeong Shin
- Department of Health Research, Jeollanam-do Institute of Health and Environment, Muan, Korea
| | - Eunbyeul Go
- Department of Health Research, Jeollanam-do Institute of Health and Environment, Muan, Korea
| | - Hyun-Cheol Lim
- Department of Health Research, Jeollanam-do Institute of Health and Environment, Muan, Korea
| | - Ji-Yoon Jeon
- Department of Health Research, Jeollanam-do Institute of Health and Environment, Muan, Korea
| | - Yerim Kwon
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Korea
| | - Yerin Lee
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Korea
| | - Tong-Soo Kim
- Convergence Research Center for Insect Vectors, Incheon National University, Incheon, Korea
| | - Sung-Keun Lee
- Department of Pharmacology, College of Medicine, Inha University, Incheon, Korea.
| | - Young Yil Bahk
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Korea
- Research Institute for Biomedical & Health Science, Konkuk University, Chungju, Korea.
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Kung WJ, Shih CT, Shih YL, Liu LY, Wang CH, Cheng YW, Liu HC, Lin CC. Faster waning of the rubella-specific immune response in young pregnant women immunized with MMR at 15 months. Am J Reprod Immunol 2020; 84:e13294. [PMID: 32569402 DOI: 10.1111/aji.13294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 12/26/2022] Open
Abstract
PROBLEM Vaccination is the best protection against rubella and congenital rubella infection. Although a high rate of immunization coverage is achieved in Taiwan, it is unknown if the vaccine-induced immunity persists from the age of vaccination to childbearing age. METHODS OF STUDY A total of 5,988 prenatal rubella IgG test results of young pregnant women aged 19-23 years old from six hospitals during January 2001 to December 2008 and January 2013 to December 2017 were analyzed. We compared the rubella seropositivity rates and titers in these women who were vaccinated with MMR vaccine in four different vaccination age cohorts. RESULTS The overall rubella seropositivity rate was 87.4% (95% CI: 86.6%-88.3%), and the mean rubella IgG level was 39 IU/mL among young pregnant women aged 19-23 years. Women in the elementary cohort had the highest rubella positivity of 90.8% (95% CI: 89.6%-91.9%), and levels gradually decrease to 84.6% (95% CI: 82.4%-86.7%) in 15-month plus cohort. The average rubella IgG was only 25 IU/mL for the 15-month plus cohort. Women in cohorts immunized at younger age exhibited significantly lower chances of being seropositive relative to women in older cohort after adjusting other factors (all P < .01). CONCLUSION The rubella seropositivity rate and rubella IgG levels were low among young women aged 19-23 years, especially in cohorts immunized at younger age. As rubella immunity wanes over time, a third dose of MMR may be a protective strategy for women who conceive later in life.
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Affiliation(s)
- Wan-Ju Kung
- Department of Laboratory Medicine, Fooyin University Hospital, Pingtung, Taiwan
| | - Ching-Tang Shih
- Department of Family Medicine, Fooyin University Hospital, Pingtung, Taiwan
| | - Yung-Luen Shih
- Department of Pathology & Laboratory Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan.,School of Medical Laboratory Science and Biotechnology, Taipei Medical University, Taipei, Taiwan
| | - Ling-Yao Liu
- Department of Laboratory Medicine, Mennonite Christian Hospital, Hualien, Taiwan
| | | | - Ya-Wen Cheng
- Department of Clinical Pathology, E-Da Hospital, Kaohsiung, Taiwan
| | - Hsueh-Chiao Liu
- Department of Laboratory Medicine, Fooyin University Hospital, Pingtung, Taiwan
| | - Ching-Chiang Lin
- Department of Education and Research, Fooyin University Hospital, Pingtung, Taiwan.,Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung, Taiwan
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Kwak YG, Song JE, Oh GB, Jeong IH, Cho CR, Kim N, Yoo HM, Yoo GM, Lee MJ, Kim BN. Comparison of the Seroprevalence of Measles Antibodies among Healthcare Workers in Two Korean Hospitals in 2019. Infect Chemother 2020; 52:93-97. [PMID: 31997601 PMCID: PMC7113453 DOI: 10.3947/ic.2020.52.1.93] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/08/2020] [Indexed: 11/24/2022] Open
Abstract
We performed a point seroprevalence survey of measles among healthcare workers (HCWs) at two Korean teaching hospitals in 2019. A total of 2,830 HCWs underwent an antibody test. The overall seropositivity of measles was 93.1%. The seroprevalence of measles was lowest in HCWs aged 20 - 24 years (81.2%), followed by those aged 25 - 29 years (90.1%). The rates of anti-measles IgG positivity were significantly different between the two hospitals (97.0% vs. 89.4%, P <0.001). These results suggest that the seropositivity of measles in HCWs may differ depending on the hospital's vaccination policy.
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Affiliation(s)
- Yee Gyung Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Je Eun Song
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Gang Bok Oh
- Infection Control Office, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - In Hye Jeong
- Infection Control Office, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Chong Rae Cho
- Department of Laboratory Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Namhee Kim
- Department of Pediatrics, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Hyeon Mi Yoo
- Infection Control Office, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Gyeong Min Yoo
- Infection Control Office, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Myung Jin Lee
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Baek Nam Kim
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea.
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Jung J, Kim SK, Kwak SH, Hong MJ, Kim SH. Seroprevalence of Measles in Healthcare Workers in South Korea. Infect Chemother 2019; 51:58-61. [PMID: 30941939 PMCID: PMC6446017 DOI: 10.3947/ic.2019.51.1.58] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 03/12/2019] [Indexed: 12/02/2022] Open
Abstract
There are only limited data regarding the seroprevalence of measles of healthcare workers (HCWs) in Korea. We evaluated the seroprevalence of measles in HCWs in a tertiary care hospital in Korea. A total of 7,411 HCWs born from 1952 to 1995 underwent antibody test. The overall seropositivity of measles was 73% (95% confidence interval, 72 – 74). The seropositivity of measles sharply declined from 85% in the 1986 birth cohort to 42% in the 1995 birth cohort, thus signifying pockets of under-immunity. Our data warrant the need for routine antibody tests, followed by measles vaccination or routine measles vaccination in young Korean HCWs.
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Affiliation(s)
- Jiwon Jung
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Office for Infection Control, Asan Medical Center, Seoul, Korea
| | - Sun Kyung Kim
- Office for Infection Control, Asan Medical Center, Seoul, Korea
| | - Sun Hee Kwak
- Office for Infection Control, Asan Medical Center, Seoul, Korea
| | - Min Jee Hong
- Office for Infection Control, Asan Medical Center, Seoul, Korea
| | - Sung Han Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Office for Infection Control, Asan Medical Center, Seoul, Korea.
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