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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 A + B (Twinrix)
  4. Blood pressure increased
Hepatitis A + B (Twinrix)×Blood pressure increased

Blood pressure increased Reports for Hepatitis A + B (Twinrix)

#171 most reported symptom for this vaccine

21
Reports
0
Deaths
3
Hospitalizations
0
Mortality Rate
%
14.3
Hosp. Rate
%

Blood pressure increased and Hepatitis A + B (Twinrix)

Blood pressure increased has been reported 21 times in association with Hepatitis A + B (Twinrix) vaccination in VAERS. This represents 0.4% of all 5,237 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 3 involved hospitalization (14.3%).

Blood pressure increased is the #171 most frequently reported symptom for Hepatitis A + B (Twinrix) out of 871 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 21 reports of Blood pressure increased after Hepatitis A + B (Twinrix) vaccination may seem alarming, but context is critical.

The mortality rate among these reports is very low at 0.00%, suggesting most cases are non-fatal.

Important Context

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

CSF protein increased22 reportsAntibody test negative22 reportsViral infection21 reportsMemory impairment21 reports

Quick Facts

Reports:21
Deaths:0
Hospitalizations:3
% of Vaccine:0.4%
Rank:#171 of 871

Related Pages

Hepatitis A + B (Twinrix) OverviewBlood pressure increased (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.