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Report #2879267

Received Dec 23, 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
Unknown
Age
1 yrs
State
CO
Recovered
Unknown
Vaccinated
Dec 18, 2025
Onset
Dec 18, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
HBHEPBHIB + HEP B (COMVAX)MERCK & CO. INC.UNKX007545—

Symptoms (2)

Expired product administeredNo adverse event

Symptom narrative

Caller is a nurse who reports expired PEDVAX HIB (expiry 11/20/2025) was administered today 12/18/2025 to one patient. Product had not experienced any temperature excursions through the date of administration. No additional AE details provided. No ad; No additional AE details provided; This Spontaneous report has been received from a nurse concerning to an approximately 1-year-old patient of unknown gender. The patient's concurrent conditions, pertinent medical history, concomitant therapies, drug reactions or allergies were not reported. On 18-Dec-2025, the patient was vaccinated with Haemophilus b Conjugate Vaccine (Meningococcal Protein Conjugate) (PEDVAXHIB) (Lot Number: X007545, expiration date: 20-Nov-2025) (strength, dose, route, and anatomical location were not provided) as Prophylaxis. On 18-Dec-2025, the patient experienced expired Haemophilus b Conjugate Vaccine (Meningococcal Protein Conjugate) (PEDVAXHIB) administered (Expired vaccine used). Product had not experienced any temperature excursions through the date of administration. No additional AE details provided.