VAERS reports by lot

Sanofi Pasteur DTaP/Tdap lot U7920AA: VAERS reports

20 VAERS reports list lot U7920AA as a Sanofi Pasteur DTaP/Tdap vaccine, received between 2023-11-10 and 2026-02-19. Data: VAERS public files through 28 May 2026 (site extract 2026-10-28).

Read this first. VAERS accepts reports from anyone, and a report does not establish that the vaccine caused the event. A lot's report count mostly reflects how many doses it contained, when it was used and who received it; no administered-dose counts are published for this lot, so counts are not rates and cannot rank lots against each other. Lot numbers in VAERS reports are typed by reporters and are sometimes wrong.
20
Reports
15%
Marked serious
0
With a death outcome
11
Months with reports

Symptom categories in these reports

A report can mention several categories, so the counts add up to more than the number of reports.

CategoryCount%
Neurological1126%
Injection-site / Local reaction921%
Gastrointestinal717%
General / Systemic (non-local)717%
Musculoskeletal410%
Dermatological (non-injection-site)25%
Cardiac / Cardiovascular12%
Respiratory12%

Where reports came from

U.S. state of the reporter, where given (top 10).

StateReports
Florida5
New Mexico3
Nebraska2
New Jersey2
Texas2
North Dakota2
Idaho1
New York1
Washington1
California1

Reports by month received

MonthReportsBar
2023-112
2023-124
2024-011
2024-023
2024-043
2024-061
2024-081
2025-051
2025-111
2026-011
2026-022

Products recorded with this lot

Manufacturer and product as reported in VAERS. Reports listing the lot under more than one product are counted once.

Related

Nearby Sanofi Pasteur DTaP/Tdap lots (A–Z): U7656AA · U7838AA · U7904AA · U7927AA · U7931AB · U7948BA

Source: VAERS public data (CDC/FDA), grouped by manufacturer and lot by the Open Source Medicine Foundation; extract 2026-10-28 18:08 UTC. Not medical advice. Report errors via contact.