VAERS reports by lot

Sanofi Pasteur DTaP/Tdap lot 3CA55C1: VAERS reports

33 VAERS reports list lot 3CA55C1 as a Sanofi Pasteur DTaP/Tdap vaccine, received between 2025-04-24 and 2026-03-27. 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.
33
Reports
0%
Marked serious
0
With a death outcome
10
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 reaction1862%
Dermatological (non-injection-site)414%
Allergic / Anaphylactic310%
Musculoskeletal27%
Respiratory13%
General / Systemic (non-local)13%

Where reports came from

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

StateReports
Nevada6
Washington6
Michigan4
Ohio3
Tennessee2
Utah2
Florida2
North Carolina1
Arkansas1
Illinois1
Idaho1
New York1

Reports by month received

MonthReportsBar
2025-042
2025-063
2025-072
2025-089
2025-095
2025-106
2025-121
2026-011
2026-022
2026-032

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): 3CA03C3 · 3CA20C1 · 3CA25C1 · C2340AA · C2341AA · C2384AA

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.