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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. Hib Polysaccharide
  4. Agitation
Hib Polysaccharide×Agitation

Agitation Reports for Hib Polysaccharide

#15 most reported symptom for this vaccine

12
Reports
1
Deaths
2
Hospitalizations
8.33
Mortality Rate
%
16.7
Hosp. Rate
%

Agitation and Hib Polysaccharide

Agitation has been reported 12 times in association with Hib Polysaccharide vaccination in VAERS. This represents 4.3% of all 282 reports for this vaccine.

Among these reports, 1 mentioned death (8.33%) and 2 involved hospitalization (16.7%).

Agitation is the #15 most frequently reported symptom for Hib Polysaccharide out of 81 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 12 reports of Agitation after Hib Polysaccharide vaccination may seem alarming, but context is critical.

The 8.33% 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 Agitation occurred after vaccination, not that the vaccine caused it.
•Background rates: Agitation 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

Rash papular14 reportsDrug ineffective13 reportsInjection site oedema12 reportsOedema10 reports

Quick Facts

Reports:12
Deaths:1
Hospitalizations:2
% of Vaccine:4.3%
Rank:#15 of 81

Related Pages

Hib Polysaccharide OverviewAgitation (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.