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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. Meningococcal Conjugate (Menactra)

Meningococcal Conjugate (Menactra)

MNQ36,149 total reports
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Manufacturers:

Sanofi PasteurNovartisUnknown Manufacturer

Meningococcal Conjugate (Menactra) has 36,149 reports in VAERS spanning from 1990 to 2026. Of these reports, 103 mentioned death, 1,837 involved hospitalization, and 9,455 required emergency department visits. This vaccine is manufactured by: Sanofi Pasteur, Novartis, Unknown Manufacturer. This vaccine accounts for 1.8% of all 1,983,260 reports in the VAERS database.

36,149
Total Reports
103
Deaths
1,837
Hospitalizations
9,455
ER Visits
347
Disabilities

About Meningococcal Conjugate (Menactra)

Meningococcal Conjugate (Menactra) has 36,149 reports in VAERS spanning from 1990 to 2026.

Of these reports, 103 mentioned death, 1,837 involved hospitalization, and 9,455 required emergency department visits.

This vaccine is manufactured by: Sanofi Pasteur, Novartis, Unknown Manufacturer.

This vaccine accounts for 1.8% of all 1,983,260 reports in the VAERS database.

Reporting Rate

This vaccine averages 1,572 reports per year over 23 years of reporting (2004–2026).

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)
4,552
2. Dizziness(all)
4,108
3. Headache(all)
3,623
4. Injection site swelling(all)
3,539
5. Syncope(all)
3,439
6. Pyrexia(all)
3,434
7. No adverse event(all)
3,195
8. Erythema(all)
3,019
9. Nausea(all)
2,572
10. Injection site pain(all)
2,453

Top Reporting States

1. California2,770
2. Texas2,615
3. Pennsylvania1,457
4. Michigan1,417
5. New York1,229
6. Ohio1,141
7. Illinois1,113
8. Florida1,028

Reports by Year

20268
20251,439
20241,449
20231,692
20221,630
20211,424
20201,066
20191,589
20181,553
20172,156

Explore Further

⚖️ Compare MNQ 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.