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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. Rotavirus (Rotarix)
  4. Infantile spasms
Rotavirus (Rotarix)×Infantile spasms

Infantile spasms Reports for Rotavirus (Rotarix)

#168 most reported symptom for this vaccine

17
Reports
0
Deaths
15
Hospitalizations
0
Mortality Rate
%
88.2
Hosp. Rate
%

Infantile spasms and Rotavirus (Rotarix)

Infantile spasms has been reported 17 times in association with Rotavirus (Rotarix) vaccination in VAERS. This represents 0.4% of all 3,859 reports for this vaccine.

Among these reports, 0 mentioned death (0.00%) and 15 involved hospitalization (88.2%).

Infantile spasms is the #168 most frequently reported symptom for Rotavirus (Rotarix) out of 653 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 17 reports of Infantile spasms after Rotavirus (Rotarix) 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 Infantile spasms occurred after vaccination, not that the vaccine caused it.
•Background rates: Infantile spasms 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

Polymerase chain reaction17 reportsElectrocardiogram normal17 reportsPoor feeding infant17 reportsNausea16 reports

Quick Facts

Reports:17
Deaths:0
Hospitalizations:15
% of Vaccine:0.4%
Rank:#168 of 653

Related Pages

Rotavirus (Rotarix) OverviewInfantile spasms (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.