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

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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
  2. Manufacturers
  3. Sanofi Pasteur

Sanofi Pasteur

254,751 total reports9.7% market share
254,751
Total Reports
2,999
Deaths
18,549
Hospitalizations
29
Vaccines

About Sanofi Pasteur

Sanofi Pasteur has 254,751 adverse event reports in VAERS, representing 9.7% of all manufacturer-attributed reports.

Of these reports, 2,999 mentioned death and 18,549 involved hospitalization.

Sanofi Pasteur produces 29 vaccines tracked in VAERS. Their moderate report volume reflects their market presence in specific vaccine categories.

Vaccines by Sanofi Pasteur

VaccineReportsDeathsHospitalizations
Flu (Trivalent)56,6334163,476
Polio (IPV)30,3254361,811
Tdap27,264561,029
Flu (Quadrivalent)26,4921641,290
DTaP25,3162511,583
Meningococcal (MenACWY)22,746621,137
Hib15,6164401,902
DTaP+IPV+Hib10,9212591,196
Td4,99018164
FLU(H1N1)4,90939440
Typhoid4,41514311
Yellow Fever3,52727311
DTaP+IPV2,195234
Rabies1,487652
Meningococcal (MenB)1,14516112
TTOX995328
DT628223
DTAPH565233
Flu (Seasonal)473787
JEV320019
DTP262218
Dengue (Dengvaxia)66010
Hepatitis B61015
BCG (Tuberculosis)5731
DTPHIB4925
DTPIPV4601
6VAX-F3103
H5N1500
Rubella400

Understanding Manufacturer Data

•Market presence matters: More reports often reflect more doses distributed, not necessarily more safety issues.
•Reporting varies: Newer vaccines and those under heightened scrutiny tend to have higher reporting rates.
•All manufacturers meet FDA standards: Safety and efficacy requirements apply equally to all approved vaccines.

Top Vaccines

1. Flu (Trivalent)59,263
2. Polio (IPV)32,206
3. Tdap28,622
4. Flu (Quadrivalent)27,273
5. DTaP26,494
6. Meningococcal (MenACWY)24,613
7. Hib16,774
8. DTaP+IPV+Hib11,520
9. FLU(H1N1)5,193
10. Td5,189

Explore Further

Top Vaccine: FLU3All ManufacturersManufacturer LandscapeCompare Vaccines

Data Source

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