Long-term Immunogenicity of Measles Vaccine: An Italian Retrospective Cohort Study

Author:

Bianchi Francesco Paolo1,Stefanizzi Pasquale1,De Nitto Sara1,Larocca Angela Maria Vittoria2,Germinario Cinzia1,Tafuri Silvio1

Affiliation:

1. Department of Biomedical Science and Human Oncology, Aldo Moro University of Bari, Bari, Italy

2. Hygiene Department, Bari Policlinico General Hospital, Bari, Italy

Abstract

Abstract Background Levels of antibodies induced by the measles virus–containing vaccine have been shown to decline over time, but there is no formal recommendation about testing immunized subjects (in particular, healthcare workers [HCWs]) to investigate the persistence of measles immunoglobulin G (IgG). Methods This study aims to evaluate the long-term immunogenicity of measles vaccine in a sample of medical students and residents of the University of Bari who attended the Hygiene Department for a biological risk assessment (April 2014–June 2018). Results Two thousand immunized (2 doses of measles-mumps-rubella [MMR] vaccine) students and residents were tested; 305 of these (15%) did not show protective anti-measles IgG. This proportion was higher among subjects who received vaccination at ≤15 months (20%) than in those who received vaccination at 16–23 months (17%) and at ≥24 months (10%) (P < .0001). After an MMR vaccine booster dose, we noted a seroconversion of 74% of seronegative HCWs. The overall seroconversion rate after a second dose (booster) was 93%. No serious adverse events were noted after the booster doses. Conclusions An important proportion of subjects immunized for measles do not show a protective IgG titer in the 10 years after vaccination. Our management strategy seems consistent with the purpose of evidencing immunological memory.

Publisher

Oxford University Press (OUP)

Subject

Infectious Diseases,Immunology and Allergy

Reference38 articles.

1. An economic analysis of the current universal 2-dose measles-mumps-rubella vaccination program in the United States;Zhou;J Infect Dis,2004

2. Progress towards regional measles elimination—worldwide, 2000–2016;Dabbagh;Wkly Epidemiol Rec,2017

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3