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Report #2841407

Received May 16, 2025

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
2 yrs
State
PA
Recovered
Unknown
Vaccinated
May 2, 2025
Onset
Dec 1, 2023
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
TDAPTDAP (BOOSTRIX)GLAXOSMITHKLINE BIOLOGICALSUNK3ZH27—

Symptoms (2)

Product administered to patient of inappropriate ageWrong product administered

Symptom narrative

Boostrix instead of Infanrix administration; Infanrix second dose out of the recommended age administration; Infanrix first dose out of the recommended age administration/Infanrix second dose out of the recommended age administration/Boostrix out of the recommended age administration; This non-serious case was reported by a other health professional via call center representative and described the occurrence of wrong vaccine administered in a 2-year-old male patient who received DTPa (Reduced antigen) (Boostrix) (batch number 3ZH27, expiry date 25-JAN-2027) for prophylaxis. Co-suspect products included DTPa (Infanrix) for prophylaxis, DTPa (Infanrix) for prophylaxis and DTPa (Infanrix) for prophylaxis. On 02-MAY-2025, the patient received Boostrix. On an unknown date, the patient did not receive the 3rd dose of Infanrix. In JUL-2024, the patient received the 2nd dose of Infanrix. In DEC-2023, the patient received the 1st dose of Infanrix. In DEC-2023, not applicable after receiving Boostrix, Infanrix and Infanrix and an unknown time after receiving Infanrix, the patient experienced inappropriate age at vaccine administration (Verbatim: Infanrix first dose out of the recommended age administration/Infanrix second dose out of the recommended age administration/Boostrix out of the recommended age administration). In JUL-2024, the patient experienced inappropriate age at vaccine administration (Verbatim: Infanrix second dose out of the recommended age administration). On 02-MAY-2025, the patient experienced wrong vaccine administered (Verbatim: Boostrix instead of Infanrix administration). The outcome of the wrong vaccine administered, inappropriate age at vaccine administration and inappropriate age at vaccine administration were not applicable. This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK Receipt Date: 08-MAY-2025 Medical Assistant wanted to know if there would be any harm to a 2-year-old patient that received Boostrix instead of Infanrix as a third dose in the diphtheria, tetanus and pertussis immunization scheme which led to wrong vaccine administered. Also, it was reported that when the patient received the first and second dose of Infanrix, both being also given out of the recommended age of administration (first dose in December 2023 and second in July 2024, when the patient was over 1 year of age) which led to inappropriate age at vaccine administration. The Vaccine Administration Facility is the same as Primary Reporter. Consented to follow up.