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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.

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  3. Moderna

Moderna

514,569 total reports19.5% market share
514,569
Total Reports
11,510
Deaths
47,956
Hospitalizations
3
Vaccines

About Moderna

Moderna has 514,569 adverse event reports in VAERS, representing 19.5% of all manufacturer-attributed reports.

Of these reports, 11,510 mentioned death and 47,956 involved hospitalization.

Moderna produces 3 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 Moderna

VaccineReportsDeathsHospitalizations
COVID-19484,57010,75044,338
COVID-19 (Bivalent)17,9251771,348
RSV6224

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-19496,269
2. COVID-19 (Bivalent)18,235
3. RSV65

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.