VAERS reports by lot

Sanofi Pasteur DTaP/Tdap lot U7948BA: VAERS reports

20 VAERS reports list lot U7948BA as a Sanofi Pasteur DTaP/Tdap vaccine, received between 2024-01-12 and 2025-12-08. 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
0%
Marked serious
0
With a death outcome
9
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%
Injection-site / Local reaction2536%
Musculoskeletal1014%
General / Systemic (non-local)811%
Allergic / Anaphylactic69%
Dermatological (non-injection-site)69%
Gastrointestinal57%
Neurological46%
Cardiac / Cardiovascular34%
Autoimmune / Immune-mediated23%
Psychiatric / Neuropsychiatric11%

Where reports came from

U.S. state of the reporter, where given (top 12).

StateReports
Ohio3
Illinois3
Texas2
Tennessee1
Oregon1
Michigan1
Georgia1
Minnesota1
Massachusetts1
North Carolina1
Arizona1
New York1

Reports by month received

MonthReportsBar
2024-011
2024-021
2024-034
2024-043
2024-054
2024-064
2024-081
2024-101
2025-121

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): U7920AA · U7927AA · U7931AB · U7999AA · U8009AB · U8015AA

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.