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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.

⚠️

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
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  3. Hib (Pedvaxhib)

Hib (Pedvaxhib)

HIBV60,298 total reports
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Manufacturers:

Pfizer / WyethSanofi PasteurMerck & Co.Connaught LaboratoriesUnknown ManufacturerGlaxoSmithKlineLederle Praxsis

Hib (Pedvaxhib) has 60,298 reports in VAERS spanning from 1990 to 2026. Of these reports, 2,413 mentioned death, 8,487 involved hospitalization, and 23,091 required emergency department visits. This vaccine is manufactured by: Pfizer / Wyeth, Sanofi Pasteur, Merck & Co., Connaught Laboratories, Unknown Manufacturer, GlaxoSmithKline, Lederle Praxsis. This vaccine accounts for 3.0% of all 1,983,260 reports in the VAERS database.

60,298
Total Reports
2,413
Deaths
8,487
Hospitalizations
23,091
ER Visits
1,241
Disabilities
⚠️Death reporting rate (4.0%) is 2.9× the database average. This may reflect the patient population, not vaccine safety.

About Hib (Pedvaxhib)

Hib (Pedvaxhib) has 60,298 reports in VAERS spanning from 1990 to 2026.

Of these reports, 2,413 mentioned death, 8,487 involved hospitalization, and 23,091 required emergency department visits.

This vaccine is manufactured by: Pfizer / Wyeth, Sanofi Pasteur, Merck & Co., Connaught Laboratories, Unknown Manufacturer, GlaxoSmithKline, Lederle Praxsis.

This vaccine accounts for 3.0% of all 1,983,260 reports in the VAERS database.

Reporting Rate

This vaccine averages 1,630 reports per year over 37 years of reporting (1990–2026).

Understanding These Numbers

•Reports don't prove causation. They represent temporal associations where someone experienced an event after vaccination.
•Background rates matter. Many conditions occur naturally and may coincidentally happen after vaccination.
•Reporting varies by vaccine. Newer vaccines or those in the news may have higher reporting rates due to increased awareness.

Most Reported Symptoms

1. Pyrexia(all)
18,043
2. Crying(all)
5,810
3. Agitation(all)
5,623
4. No adverse event(all)
5,365
5. Rash(all)
5,163
6. Screaming(all)
4,545
7. Vomiting(all)
4,518
8. Convulsion(all)
3,961
9. Injection site erythema(all)
3,557
10. Urticaria(all)
3,152

Top Reporting States

1. California4,863
2. Texas3,323
3. Michigan2,909
4. Pennsylvania2,839
5. Ohio2,283
6. Florida2,084
7. Georgia1,922
8. New York1,892

Reports by Year

20268
2025888
20241,025
20231,003
2022902
2021935
2020992
20191,218
20181,150
20171,573

Explore Further

⚖️ Compare Hib (Pedvaxhib) with OthersRead Analysis Articles

Related Analysis

The Denominator ProblemUnderstanding Reporting BiasWhen Do Side Effects Start?Death Reports Deep DiveSerious Outcomes AnalysisMost Common Symptoms

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.