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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. Fatigue
Hepatitis B (Engerix-B)×Fatigue

Fatigue Reports for Hepatitis B (Engerix-B)

#35 most reported symptom for this vaccine

1,439
Reports
8
Deaths
131
Hospitalizations
0.56
Mortality Rate
%
9.1
Hosp. Rate
%

Fatigue and Hepatitis B (Engerix-B)

Fatigue has been reported 1,439 times in association with Hepatitis B (Engerix-B) vaccination in VAERS. This represents 2.0% of all 73,280 reports for this vaccine.

Among these reports, 8 mentioned death (0.56%) and 131 involved hospitalization (9.1%).

Fatigue is the #35 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 1,439 reports of Fatigue after Hepatitis B (Engerix-B) vaccination may seem alarming, but context is critical.

The mortality rate among these reports is very low at 0.56%, suggesting most cases are non-fatal.

Important Context

•Association, not causation: These reports show Fatigue occurred after vaccination, not that the vaccine caused it.
•Background rates: Fatigue 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

Somnolence1,493 reportsInfection1,478 reportsHyperhidrosis1,421 reportsAbdominal pain1,400 reports

Quick Facts

Reports:1,439
Deaths:8
Hospitalizations:131
% of Vaccine:2.0%
Rank:#35 of 2382

Related Pages

Hepatitis B (Engerix-B) OverviewFatigue (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.