{"title":"Seroprevalence of Hepatitis A in Non-vaccinated Adolescents Aged 9 to 12 Years in New Delhi, India: A Cross-Sectional Study.","authors":"Anurag Agarwal, Shweta Sajlan, Rohit Chawla, Surendra Bahadur Mathur","doi":"10.1007/s13312-025-00090-w","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To determine the seroprevalence of hepatitis A among non-vaccinated adolescents aged 9-12 years and to ascertain the sociodemographic factors associated with seropositivity.</p><p><strong>Methods: </strong>A cross-sectional study was conducted among non-vaccinated adolescents aged 9-12 years from urban and semi-urban settings in New Delhi. Sera were analyzed using competitive ELISA to detect IgG antibodies against hepatitis A. Sociodemographic data were collected using a structured pro forma.</p><p><strong>Results: </strong>Of the 94 participants, 85 (90.4%) were seropositive for hepatitis A. Seropositivity was significantly associated with low socioeconomic status, lower parental education levels, lower parental occupation status, and low monthly household income.</p><p><strong>Conclusions: </strong>Despite improved sanitation, lower socioeconomic groups remain highly endemic for hepatitis A. Catch-up vaccination may have limited utility in adolescents aged 10 years or older from these backgrounds. Targeted public health strategies and further evaluation of vaccination policies in specific populations are needed.</p><p><strong>Trial registration: </strong>Clinical Trials Registry-India No. CTRI/2022/10/046790.Obtained.</p>","PeriodicalId":13291,"journal":{"name":"Indian pediatrics","volume":" ","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian pediatrics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s13312-025-00090-w","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PEDIATRICS","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: To determine the seroprevalence of hepatitis A among non-vaccinated adolescents aged 9-12 years and to ascertain the sociodemographic factors associated with seropositivity.
Methods: A cross-sectional study was conducted among non-vaccinated adolescents aged 9-12 years from urban and semi-urban settings in New Delhi. Sera were analyzed using competitive ELISA to detect IgG antibodies against hepatitis A. Sociodemographic data were collected using a structured pro forma.
Results: Of the 94 participants, 85 (90.4%) were seropositive for hepatitis A. Seropositivity was significantly associated with low socioeconomic status, lower parental education levels, lower parental occupation status, and low monthly household income.
Conclusions: Despite improved sanitation, lower socioeconomic groups remain highly endemic for hepatitis A. Catch-up vaccination may have limited utility in adolescents aged 10 years or older from these backgrounds. Targeted public health strategies and further evaluation of vaccination policies in specific populations are needed.
期刊介绍:
The general objective of Indian Pediatrics is "To promote the science and practice of Pediatrics." An important guiding principle has been the simultaneous need to inform, educate and entertain the target audience. The specific key objectives are:
-To publish original, relevant, well researched peer reviewed articles on issues related to child health.
-To provide continuing education to support informed clinical decisions and research.
-To foster responsible and balanced debate on controversial issues that affect child health, including non-clinical areas such as medical education, ethics, law, environment and economics.
-To achieve the highest level of ethical medical journalism and to produce a publication that is timely, credible and enjoyable to read.