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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.

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  3. Vaccine Not Specified
  4. Heart rate irregular
Vaccine Not Specified×Heart rate irregular

Heart rate irregular Reports for Vaccine Not Specified

#387 most reported symptom for this vaccine

42
Reports
1
Deaths
6
Hospitalizations
2.38
Mortality Rate
%
14.3
Hosp. Rate
%

Heart rate irregular and Vaccine Not Specified

Heart rate irregular has been reported 42 times in association with Vaccine Not Specified vaccination in VAERS. This represents 0.1% of all 29,669 reports for this vaccine.

Among these reports, 1 mentioned death (2.38%) and 6 involved hospitalization (14.3%).

Heart rate irregular is the #387 most frequently reported symptom for Vaccine Not Specified out of 2482 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 42 reports of Heart rate irregular after Vaccine Not Specified vaccination may seem alarming, but context is critical.

The mortality rate of 2.38% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.

Important Context

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

Diabetes mellitus42 reportsCyanosis42 reportsFibrin D dimer increased42 reportsOral herpes42 reports

Quick Facts

Reports:42
Deaths:1
Hospitalizations:6
% of Vaccine:0.1%
Rank:#387 of 2482

Related Pages

Vaccine Not Specified OverviewHeart rate irregular (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.