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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. Anthrax (Biothrax)
  4. Injection site nodule
Anthrax (Biothrax)×Injection site nodule

Injection site nodule Reports for Anthrax (Biothrax)

#141 most reported symptom for this vaccine

84
Reports
0
Deaths
4
Hospitalizations
0
Mortality Rate
%
4.8
Hosp. Rate
%

Injection site nodule and Anthrax (Biothrax)

Injection site nodule has been reported 84 times in association with Anthrax (Biothrax) vaccination in VAERS. This represents 0.7% of all 11,622 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 4 involved hospitalization (4.8%).

Injection site nodule is the #141 most frequently reported symptom for Anthrax (Biothrax) out of 1624 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 84 reports of Injection site nodule after Anthrax (Biothrax) 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 Injection site nodule occurred after vaccination, not that the vaccine caused it.
•Background rates: Injection site nodule 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

Sinusitis84 reportsOropharyngeal pain84 reportsElectrocardiogram ST segment elevation84 reportsImmediate post-injection reaction84 reports

Quick Facts

Reports:84
Deaths:0
Hospitalizations:4
% of Vaccine:0.7%
Rank:#141 of 1624

Related Pages

Anthrax (Biothrax) OverviewInjection site nodule (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.