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Report #2887511

Received Mar 3, 2026

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Male
Age
Age unknown
State
CO
Recovered
Unknown
Vaccinated
Jan 12, 2026
Onset
Jan 12, 2026
Days to onset
0
Hospital days

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
DTPPVHBHPBDTAP+IPV+HIB+HEPB (VAXELIS)MSP VACCINE COMPANY1
HEPAHEP A (VAQTA)MERCK & CO. INC.UNKZ005852

Symptoms (1)

Wrong product administered

Symptom narrative

Medical Assistant stated that they administered a dose ofVAQTA instead of Vaxelis to a 4 month old patient during a routine vaccination appointment out of error; This non-serious spontaneous Safety Report was received with reference number: 02931494(Interaction number: 02931491) by partner on 12-JAN-2026 and forwarded to agency on 12-JAN-2026 from a health professional. Due to the nature of the events, the causality between the events ‘Medical Assistant stated that they administered a dose of VAQTA instead of Vaxelis to a 4 month old patient during a routine vaccination appointment out of error' are not applicable. Further information expected. Significant follow-up information was received by fax on 27-JAN-2026 from a health professional. Due to the nature of the events, the causality between the events ‘Medical Assistant stated that they administered a dose of VAQTA instead of Vaxelis to a 4 month old patient during a routine vaccination appointment out of error' and Vaxelis is not applicable. No further information is expected.

Current illness

Prophylaxis