ArticleIndian pediatrics2021
Long term Immunogenicity of Single Dose of Live Attenuated Hepatitis A Vaccine in Indian Children - Results of 15-Year Follow-up.
Article in Indian pediatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Age-stratified prevalence of anti-hepatitis A virus antibodies in four metropolitan Indian cities and recent changes in Pune city.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2026Article
- Long-Term Persistence of Hepatitis A Virus Immunity in Healthcare Workers Upto 25 Years After Vaccination.Journal of viral hepatitis · 2026Article
- Hepatitis A virus endemicity and vaccine policy, India.Bulletin of the World Health Organization · 2026Article
- Review
- Expert consensus and recommendations on the live attenuated hepatitis A vaccine and immunization practices in India.Human vaccines & immunotherapeutics · 2025Article
- Hepatitis A virus infection.Nature reviews. Disease primers · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo measure anti-HAV antibodies 15 years after a single dose of live attenuated hepatitis A vaccine in Indian children.
methodsOf the 143 children vaccinated in 2004, 109 were evaluated in 2019, clinically and for anti-HAV antibodies. These children have been assessed clinically every year, and for anti-HAV antibodies in 2004, 2007, 2010 and 2014.
resultsOf the 109 children who came for the present assessment, 11 had received additional doses of hepatitis A vaccine in 2004/2007 because of low anti-HAV titre (<20 mIU/mL). In the remaining 98 children, 94 (96%) had seroprotective levels with a geometric mean titre of 79.6 mIU/mL. Seroprotection rate in all 109 children was 86.2%.
conclusionsSingle dose of live attenuated hepatitis A vaccine in Indian children demonstrated robust immunogenicity at 15 years post vaccination.
Indexed as
Identifiers
33612491PMC8384096W3131488107What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.