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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 (Pedvaxhib)
  4. Lymphadenopathy
Hib (Pedvaxhib)×Lymphadenopathy

Lymphadenopathy Reports for Hib (Pedvaxhib)

#108 most reported symptom for this vaccine

311
Reports
18
Deaths
42
Hospitalizations
5.79
Mortality Rate
%
13.5
Hosp. Rate
%

Lymphadenopathy and Hib (Pedvaxhib)

Lymphadenopathy has been reported 311 times in association with Hib (Pedvaxhib) vaccination in VAERS. This represents 0.5% of all 60,298 reports for this vaccine.

Among these reports, 18 mentioned death (5.79%) and 42 involved hospitalization (13.5%).

Lymphadenopathy is the #108 most frequently reported symptom for Hib (Pedvaxhib) out of 2013 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 311 reports of Lymphadenopathy after Hib (Pedvaxhib) vaccination may seem alarming, but context is critical.

The 5.79% 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 Lymphadenopathy occurred after vaccination, not that the vaccine caused it.
•Background rates: Lymphadenopathy 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

Meningitis326 reportsDrug toxicity316 reportsSepsis308 reportsFull blood count normal308 reports

Quick Facts

Reports:311
Deaths:18
Hospitalizations:42
% of Vaccine:0.5%
Rank:#108 of 2013

Related Pages

Hib (Pedvaxhib) OverviewLymphadenopathy (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.