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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. Pfizer / BioNTech

Pfizer / BioNTech

559,257 total reports21.2% market share
559,257
Total Reports
12,677
Deaths
67,668
Hospitalizations
2
Vaccines

About Pfizer / BioNTech

Pfizer / BioNTech has 559,257 adverse event reports in VAERS, representing 21.2% of all manufacturer-attributed reports.

Of these reports, 12,677 mentioned death and 67,668 involved hospitalization.

Pfizer / BioNTech produces 2 vaccines tracked in VAERS. As one of the largest vaccine manufacturers by report volume, their high report count primarily reflects extensive market distribution rather than safety concerns.

Vaccines by Pfizer / BioNTech

VaccineReportsDeathsHospitalizations
COVID-19506,61611,46659,913
COVID-19 (Bivalent)24,2922652,853

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. COVID-19534,546
2. COVID-19 (Bivalent)24,711

Explore Further

Top Vaccine: COVID19All ManufacturersManufacturer LandscapeCompare Vaccines

Data Source

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