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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. DTaP
  4. Cardiac arrest
DTaP×Cardiac arrest

Cardiac arrest Reports for DTaP

#150 most reported symptom for this vaccine

202
Reports
165
Deaths
46
Hospitalizations
81.68
Mortality Rate
%
22.8
Hosp. Rate
%

Cardiac arrest and DTaP

Cardiac arrest has been reported 202 times in association with DTaP vaccination in VAERS. This represents 0.3% of all 66,714 reports for this vaccine.

Among these reports, 165 mentioned death (81.68%) and 46 involved hospitalization (22.8%).

Cardiac arrest is the #150 most frequently reported symptom for DTaP out of 1943 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 202 reports of Cardiac arrest after DTaP vaccination may seem alarming, but context is critical.

The 81.68% mortality rate among these reports is elevated, but this reflects the severity of the condition itself rather than vaccine causation.

Important Context

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

Chest X-ray normal206 reportsVasodilation procedure205 reportsGastrointestinal disorder202 reportsDeath200 reports

Quick Facts

Reports:202
Deaths:165
Hospitalizations:46
% of Vaccine:0.3%
Rank:#150 of 1943

Related Pages

DTaP OverviewCardiac arrest (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.