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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. Influenza, Seasonal
  4. Demyelination
Influenza, Seasonal×Demyelination

Demyelination Reports for Influenza, Seasonal

#455 most reported symptom for this vaccine

39
Reports
4
Deaths
23
Hospitalizations
10.26
Mortality Rate
%
59
Hosp. Rate
%

Demyelination and Influenza, Seasonal

Demyelination has been reported 39 times in association with Influenza, Seasonal vaccination in VAERS. This represents 0.1% of all 32,816 reports for this vaccine.

Among these reports, 4 mentioned death (10.26%) and 23 involved hospitalization (59.0%).

Demyelination is the #455 most frequently reported symptom for Influenza, Seasonal out of 2462 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 39 reports of Demyelination after Influenza, Seasonal vaccination may seem alarming, but context is critical.

The 10.26% 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 Demyelination occurred after vaccination, not that the vaccine caused it.
•Background rates: Demyelination 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

Pleural effusion39 reportsBacterial infection39 reportsRestlessness39 reportsUltrasound scan normal39 reports

Quick Facts

Reports:39
Deaths:4
Hospitalizations:23
% of Vaccine:0.1%
Rank:#455 of 2462

Related Pages

Influenza, Seasonal OverviewDemyelination (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.