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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. Tdap (Boostrix)
  4. Insomnia
Tdap (Boostrix)×Insomnia

Insomnia Reports for Tdap (Boostrix)

#93 most reported symptom for this vaccine

390
Reports
2
Deaths
15
Hospitalizations
0.51
Mortality Rate
%
3.8
Hosp. Rate
%

Insomnia and Tdap (Boostrix)

Insomnia has been reported 390 times in association with Tdap (Boostrix) vaccination in VAERS. This represents 0.7% of all 52,846 reports for this vaccine.

Among these reports, 2 mentioned death (0.51%) and 15 involved hospitalization (3.8%).

Insomnia is the #93 most frequently reported symptom for Tdap (Boostrix) out of 2243 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 390 reports of Insomnia after Tdap (Boostrix) vaccination may seem alarming, but context is critical.

The mortality rate among these reports is very low at 0.51%, suggesting most cases are non-fatal.

Important Context

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

Chest discomfort397 reportsInappropriate schedule of drug administration394 reportsDyskinesia390 reportsVision blurred388 reports

Quick Facts

Reports:390
Deaths:2
Hospitalizations:15
% of Vaccine:0.7%
Rank:#93 of 2243

Related Pages

Tdap (Boostrix) OverviewInsomnia (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.