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Report #2896518

Received May 14, 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
Female
Age
2 yrs
State
AZ
Recovered
Unknown
Vaccinated
May 5, 2026
Onset
May 5, 2026
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
TDAPTDAP (BOOSTRIX)GLAXOSMITHKLINE BIOLOGICALSUNK5N9L9—

Symptoms (1)

Product administered to patient of inappropriate age

Symptom narrative

2-year-old child was given Boostrix bymistake; This non-serious case was reported by a other health professional via call center representative and described the occurrence of inappropriate age at vaccine administration in a 2-year-old female patient who received DTPa (Reduced antigen) (Boostrix) (batch number 5N9L9, expiry date 28-NOV-2027) for prophylaxis. On 05-MAY-2026, the patient received Boostrix. On 05-MAY-2026, an unknown time after receiving Boostrix, the patient experienced inappropriate age at vaccine administration (Verbatim: 2-year-old child was given Boostrix bymistake). The outcome of the inappropriate age at vaccine administration was not applicable. Additional Information: GSK Receipt Date: 07-MAY-2026 The patient had 3 prior doses of DTaP.