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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. COVID-19 Vaccine
  4. Extra dose administered
COVID-19 Vaccine×Extra dose administered

Extra dose administered Reports for COVID-19 Vaccine

#89 most reported symptom for this vaccine

10,171
Reports
57
Deaths
307
Hospitalizations
0.56
Mortality Rate
%
3
Hosp. Rate
%

Extra dose administered and COVID-19 Vaccine

Extra dose administered has been reported 10,171 times in association with COVID-19 Vaccine vaccination in VAERS. This represents 0.9% of all 1,121,388 reports for this vaccine.

Among these reports, 57 mentioned death (0.56%) and 307 involved hospitalization (3.0%).

Extra dose administered is the #89 most frequently reported symptom for COVID-19 Vaccine out of 9223 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 10,171 reports of Extra dose administered after COVID-19 Vaccine vaccination may seem alarming, but context is critical. With 1,121,388 total reports for this vaccine (representing many millions of doses), Extra dose administered appears in only 0.9% of reports.

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 Extra dose administered occurred after vaccination, not that the vaccine caused it.
•Background rates: Extra dose administered 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

Abdominal pain upper10,239 reportsSkin warm10,189 reportsFull blood count10,089 reportsLethargy10,012 reports

Quick Facts

Reports:10,171
Deaths:57
Hospitalizations:307
% of Vaccine:0.9%
Rank:#89 of 9223

Related Pages

COVID-19 Vaccine OverviewExtra dose administered (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.