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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. CSF test
Influenza, Seasonal×CSF test

CSF test Reports for Influenza, Seasonal

#693 most reported symptom for this vaccine

21
Reports
1
Deaths
12
Hospitalizations
4.76
Mortality Rate
%
57.1
Hosp. Rate
%

CSF test and Influenza, Seasonal

CSF test has been reported 21 times in association with Influenza, Seasonal vaccination in VAERS. This represents 0.1% of all 32,816 reports for this vaccine.

Among these reports, 1 mentioned death (4.76%) and 12 involved hospitalization (57.1%).

CSF test is the #693 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 21 reports of CSF test after Influenza, Seasonal vaccination may seem alarming, but context is critical.

The mortality rate of 4.76% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.

Important Context

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

Influenza serology positive21 reportsX-ray abnormal21 reportsEyelid function disorder21 reportsComputerised tomogram abdomen normal21 reports

Quick Facts

Reports:21
Deaths:1
Hospitalizations:12
% of Vaccine:0.1%
Rank:#693 of 2462

Related Pages

Influenza, Seasonal OverviewCSF test (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.