VAERS reports by lot

Sanofi Pasteur DTaP/Tdap lot U8122AA: VAERS reports

25 VAERS reports list lot U8122AA as a Sanofi Pasteur DTaP/Tdap vaccine, received between 2024-07-29 and 2026-03-20. 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.
25
Reports
4%
Marked serious
0
With a death outcome
13
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%
Neurological2028%
Injection-site / Local reaction1318%
General / Systemic (non-local)1014%
Cardiac / Cardiovascular811%
Gastrointestinal68%
Dermatological (non-injection-site)68%
Allergic / Anaphylactic57%
Respiratory23%
Musculoskeletal11%
Psychiatric / Neuropsychiatric11%

Where reports came from

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

StateReports
Ohio5
Louisiana3
Mississippi2
Illinois2
Rhode Island2
Maryland1
Virginia1
Indiana1
Minnesota1
New Jersey1
Texas1
California1

Reports by month received

MonthReportsBar
2024-073
2024-084
2024-094
2024-111
2025-011
2025-031
2025-053
2025-062
2025-082
2025-091
2026-011
2026-021
2026-031

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): U7999AA · U8009AB · U8015AA · U8209CB · U8232AA · U8383AB

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.