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Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

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Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

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Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.

  1. Home
  2. Vaccines
  3. Hepatitis B (Engerix-B)
  4. Therapy non-responder
Hepatitis B (Engerix-B)×Therapy non-responder

Therapy non-responder Reports for Hepatitis B (Engerix-B)

#131 most reported symptom for this vaccine

320
Reports
2
Deaths
1
Hospitalizations
0.63
Mortality Rate
%
0.3
Hosp. Rate
%

Therapy non-responder and Hepatitis B (Engerix-B)

Therapy non-responder has been reported 320 times in association with Hepatitis B (Engerix-B) vaccination in VAERS. This represents 0.4% of all 73,280 reports for this vaccine.

Among these reports, 2 mentioned death (0.63%) and 1 involved hospitalization (0.3%).

Therapy non-responder is the #131 most frequently reported symptom for Hepatitis B (Engerix-B) out of 2382 total symptoms.

Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.

What This Means

Seeing 320 reports of Therapy non-responder after Hepatitis B (Engerix-B) vaccination may seem alarming, but context is critical.

The mortality rate among these reports is very low at 0.63%, suggesting most cases are non-fatal.

Important Context

•Association, not causation: These reports show Therapy non-responder occurred after vaccination, not that the vaccine caused it.
•Background rates: Therapy non-responder may occur naturally at baseline rates in the population, unrelated to vaccination.
•Anyone can report: VAERS accepts reports from anyone — patients, parents, healthcare providers — without requiring medical verification.
•Denominator missing: VAERS counts reports, not rates per dose. Without knowing how many doses were given, raw counts can be misleading. Learn more →

Similarly Ranked Symptoms

Abdominal pain upper327 reportsNuchal rigidity322 reportsViral infection318 reportsDyskinesia316 reports

Quick Facts

Reports:320
Deaths:2
Hospitalizations:1
% of Vaccine:0.4%
Rank:#131 of 2382

Related Pages

Hepatitis B (Engerix-B) OverviewTherapy non-responder (All Vaccines)Why Raw Numbers MisleadTop Symptoms Analysis

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.