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Report #2883267

Received Jan 27, 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
4 yrs
State
ID
Recovered
Recovered
Vaccinated
Jan 23, 2026
Onset
Jan 23, 2026
Days to onset
0
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
MNQMENINGOCOCCAL CONJUGATE (MENQUADFI)SANOFI PASTEUR1U8600AASC / RL
TDAPTDAP (ADACEL)SANOFI PASTEUR1U8670BAIM / LL

Symptoms (2)

No adverse eventWrong product administered

Symptom narrative

Patient was being seen for his 4yr well child check, along with his 11yr old brother, who was also being seen for a well child check. The provider, [name withheld] FNP, had ordered Kinrix and Proquad for Patient and Menquadfi and Tdap for the older sibling. The CMA mixed up the trays containing the vaccines and Patient received Tdap and Menquadfi. Following administration of the vaccines, it was immediately noticed by the CMA, the provider was pulled from another patient room and was notified of the error. Provider went back into the room with Patient and his mother and discussed the error. No adverse reactions noted while in the office and no adverse reactions reported from the mother in the days following the error.

Current illness

None

Medical history

None

Other medications

None

Allergies

NKDA