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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. COVID-19 Bivalent (Moderna)
  4. Basal ganglia stroke
COVID-19 Bivalent (Moderna)×Basal ganglia stroke

Basal ganglia stroke Reports for COVID-19 Bivalent (Moderna)

#1780 most reported symptom for this vaccine

5
Reports
0
Deaths
4
Hospitalizations
0
Mortality Rate
%
80
Hosp. Rate
%

Basal ganglia stroke and COVID-19 Bivalent (Moderna)

Basal ganglia stroke has been reported 5 times in association with COVID-19 Bivalent (Moderna) vaccination in VAERS. This represents 0.0% of all 42,946 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 4 involved hospitalization (80.0%).

Basal ganglia stroke is the #1780 most frequently reported symptom for COVID-19 Bivalent (Moderna) out of 2434 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 5 reports of Basal ganglia stroke after COVID-19 Bivalent (Moderna) 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 Basal ganglia stroke occurred after vaccination, not that the vaccine caused it.
•Background rates: Basal ganglia stroke 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

Ear inflammation5 reportsBone scan5 reportsHernia5 reportsInternal haemorrhage5 reports

Quick Facts

Reports:5
Deaths:0
Hospitalizations:4
% of Vaccine:0.0%
Rank:#1780 of 2434

Related Pages

COVID-19 Bivalent (Moderna) OverviewBasal ganglia stroke (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.