Pediatric Hepatitis VAERS Reports Found Serious
A study found pediatric hepatitis reports in the VAERS database were more often classified as serious than adult reports.
Updated on Oct. 7, 2026 in Children’s Health
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A cross-sectional analysis of 529 hepatitis reports submitted to the VAERS system from 1990 to 2026 revealed that pediatric cases were frequently classified as serious. Researchers noted that the available data cannot confirm whether vaccines increase hepatitis risk.
Why it matters
The study was conducted to address a significant knowledge gap regarding how age, sex, and vaccine type correlate with the severity of reported hepatitis cases. Understanding these trends is crucial for ongoing safety monitoring in public health.
Of the 529 analyzed reports, 50.5% listed Hepatitis B vaccines and 25.3% listed COVID-19 vaccines. Furthermore, two-thirds of reports for infants under 1 year and 55.1% for children aged 6 to 17 were classified as serious.
The players
Centers for Disease Control and Prevention
The CDC is the national public health agency of the United States that maintains the Vaccine Adverse Event Reporting System.
Advisory Committee on Immunization Practices
This committee provides expert advice and guidance to the CDC regarding vaccine usage and immunization schedules in the United States.
The details
Researchers queried the CDC's Wide-ranging Online Data for Epidemiologic Research interface and utilized Pearson's chi-square tests to evaluate seriousness across demographic variables. The analysis identified 154 hospitalizations and 26 deaths among the reports, though the onset interval remained unknown for 33.7% of the submissions.
Timeline
The study included VAERS data collected between 1990 and 2026.
Data processing for the study concluded on April 24, 2026.
ACIP voted on hepatitis B birth dose guidance in December 2025.
Reporting to the system peaked in 2021 with 68 reports.
The Big Picture
The study highlights the limitations of using the Vaccine Adverse Event Reporting System for definitive causality, as it is designed for signal detection rather than proving clinical outcomes. This analysis updates the figure on hepatitis-related reporting within the system to provide more nuanced demographic stratification.
This analysis provides a clearer picture of how hepatitis reports are categorized by severity within national databases but does not change current clinical guidance. Parents should consult their primary care physician regarding any vaccine-related concerns for their children.
The takeaway
VAERS data acts as an early warning system for medical professionals rather than a definitive catalog of vaccine-induced illness. Discerning the difference between a report and a confirmed clinical outcome is essential for public health transparency.
Further reading
Learn more about the latest research regarding Children’s Health.
Source note: This article includes information reported by Ajmc.
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