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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. Yellow Fever (YF-Vax)
  4. Heart rate increased
Yellow Fever (YF-Vax)×Heart rate increased

Heart rate increased Reports for Yellow Fever (YF-Vax)

#89 most reported symptom for this vaccine

43
Reports
1
Deaths
8
Hospitalizations
2.33
Mortality Rate
%
18.6
Hosp. Rate
%

Heart rate increased and Yellow Fever (YF-Vax)

Heart rate increased has been reported 43 times in association with Yellow Fever (YF-Vax) vaccination in VAERS. This represents 0.9% of all 4,996 reports for this vaccine.

Among these reports, 1 mentioned death (2.33%) and 8 involved hospitalization (18.6%).

Heart rate increased is the #89 most frequently reported symptom for Yellow Fever (YF-Vax) out of 959 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 43 reports of Heart rate increased after Yellow Fever (YF-Vax) vaccination may seem alarming, but context is critical.

The mortality rate of 2.33% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.

Important Context

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

Full blood count normal44 reportsRenal failure43 reportsDysphagia42 reportsPalpitations42 reports

Quick Facts

Reports:43
Deaths:1
Hospitalizations:8
% of Vaccine:0.9%
Rank:#89 of 959

Related Pages

Yellow Fever (YF-Vax) OverviewHeart rate 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.