Skip to main content
VaccineWatch
VaccinesSymptomsStatesAnalysisToolsDashboardCompare

VaccineWatch

Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

Explore Data

  • Vaccines
  • Symptoms
  • Manufacturers
  • States
  • Dashboard
  • Compare Tool
  • Search

Deep Dives

  • The Denominator Problem
  • Onset Timing
  • Lot Number Analysis
  • COVID Impact
  • Myocarditis
  • Death Reports
  • Interactive Tools
  • All 23 Articles →

Resources

  • About
  • Methodology
  • FAQ
  • Glossary
  • Side Effects Guide
  • Vaccine Schedule
  • Vaccine Safety
  • Safety Timeline
  • Adverse Events
  • Is VAERS Reliable?
  • Report an Event
  • Disclaimer
  • VAERS Official Site ↗

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending
  • OpenMedicare
  • OpenLobby
  • TheDataProject.ai

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
  2. Vaccines
  3. Polio (Inactivated) (Ipol)

Polio (Inactivated) (Ipol)

IPV44,360 total reports
Share

Manufacturers:

Sanofi PasteurConnaught Ltd.Unknown ManufacturerPasteur Merieux Inst.Pfizer / WyethPasteur Merieux Connaught

Polio (Inactivated) (Ipol) has 44,360 reports in VAERS spanning from 1990 to 2026. Of these reports, 1,284 mentioned death, 4,179 involved hospitalization, and 16,795 required emergency department visits. This vaccine is manufactured by: Sanofi Pasteur, Connaught Ltd., Unknown Manufacturer, Pasteur Merieux Inst., Pfizer / Wyeth, Pasteur Merieux Connaught. This vaccine accounts for 2.2% of all 1,983,260 reports in the VAERS database.

44,360
Total Reports
1,284
Deaths
4,179
Hospitalizations
16,795
ER Visits
648
Disabilities

About Polio (Inactivated) (Ipol)

Polio (Inactivated) (Ipol) has 44,360 reports in VAERS spanning from 1990 to 2026.

Of these reports, 1,284 mentioned death, 4,179 involved hospitalization, and 16,795 required emergency department visits.

This vaccine is manufactured by: Sanofi Pasteur, Connaught Ltd., Unknown Manufacturer, Pasteur Merieux Inst., Pfizer / Wyeth, Pasteur Merieux Connaught.

This vaccine accounts for 2.2% of all 1,983,260 reports in the VAERS database.

Reporting Rate

This vaccine averages 1,199 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. Injection site erythema(all)
9,647
2. Pyrexia(all)
8,013
3. Injection site swelling(all)
4,920
4. Erythema(all)
4,910
5. Injection site warmth(all)
3,672
6. Injection site oedema(all)
3,531
7. Rash(all)
2,851
8. Urticaria(all)
2,733
9. Vomiting(all)
2,633
10. Injection site pain(all)
2,557

Top Reporting States

1. California5,194
2. Texas2,649
3. Michigan1,742
4. New York1,676
5. Ohio1,658
6. Florida1,593
7. Pennsylvania1,584
8. North Carolina1,568

Reports by Year

20265
2025530
2024691
2023583
2022534
2021419
2020348
2019534
2018446
2017541

Explore Further

⚖️ Compare IPV with OthersRead Analysis Articles

Related Analysis

📋 Side Effects Guide →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.