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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. Influenza, Seasonal (Fluvirin)

Influenza, Seasonal (Fluvirin)

FLU3119,695 total reports
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Manufacturers:

Sanofi PasteurNovartisGlaxoSmithKlineCSL LimitedConnaught LaboratoriesPfizer / WyethSeqirusEvans VaccinesParke-davisMedeva Pharma, Ltd.Aventis PasteurParkdale PharmaceuticalsLederle Laboratories

Influenza, Seasonal (Fluvirin) has 119,695 reports in VAERS spanning from 1990 to 2026. Of these reports, 1,081 mentioned death, 8,325 involved hospitalization, and 37,032 required emergency department visits. This vaccine is manufactured by: Sanofi Pasteur, Novartis, GlaxoSmithKline, CSL Limited, Connaught Laboratories, Pfizer / Wyeth, Seqirus, Evans Vaccines, Parke-davis, Medeva Pharma, Ltd., Aventis Pasteur, Parkdale Pharmaceuticals, Lederle Laboratories. This vaccine accounts for 6.0% of all 1,983,260 reports in the VAERS database.

119,695
Total Reports
1,081
Deaths
8,325
Hospitalizations
37,032
ER Visits
2,236
Disabilities

About Influenza, Seasonal (Fluvirin)

Influenza, Seasonal (Fluvirin) has 119,695 reports in VAERS spanning from 1990 to 2026.

Of these reports, 1,081 mentioned death, 8,325 involved hospitalization, and 37,032 required emergency department visits.

This vaccine is manufactured by: Sanofi Pasteur, Novartis, GlaxoSmithKline, CSL Limited, Connaught Laboratories, Pfizer / Wyeth, Seqirus, Evans Vaccines, Parke-davis, Medeva Pharma, Ltd., Aventis Pasteur, Parkdale Pharmaceuticals, Lederle Laboratories.

This vaccine accounts for 6.0% of all 1,983,260 reports in the VAERS database.

Reporting Rate

This vaccine averages 3,235 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)
14,616
2. Pain(all)
13,852
3. Injection site pain(all)
13,438
4. Injection site erythema(all)
13,258
5. Pain in extremity(all)
10,724
6. Erythema(all)
9,523
7. Injection site swelling(all)
9,245
8. Headache(all)
8,484
9. Pruritus(all)
7,421
10. Chills(all)
7,319

Top Reporting States

1. California8,631
2. Texas5,614
3. Florida5,239
4. New York5,234
5. Pennsylvania5,028
6. Ohio4,241
7. Michigan4,190
8. Illinois3,812

Reports by Year

2026363
20255,884
20244,962
202363
202286
2021174
2020464
20192,659
20183,375
20174,752

Explore Further

⚖️ Compare FLU3 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.