VAERS Explorer
Back to explore

Report #2866634

Received Oct 17, 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
0.5 yrs
State
TX
Recovered
Recovered
Vaccinated
Oct 10, 2025
Onset
Oct 10, 2025
Days to onset
0
Hospital days
—

Vaccines (3)

TypeNameManufacturerDoseLotRoute / Site
DTAPHEPBIPDTAP + HEPB + IPV (PEDIARIX)GLAXOSMITHKLINE BIOLOGICALS29C295IM / OT
DTAPIPVHIBDTAP + IPV + HIB (PENTACEL)SANOFI PASTEUR2UK234ABIM / OT
PNC20PNEUMO (PREVNAR20)PFIZER\WYETH3LX2498IM / OT

Symptoms (3)

Extra dose administeredIrritabilityWrong product administered

Symptom narrative

Patient received two combination vaccines (Pediarix and Pentacel) in error during a well-child visit. The intended vaccines were Pediarix, Hib, and PCV20. Pentacel was administered instead of Hib, resulting in duplicate DTaP and IPV doses. The error was discovered shortly after administration. The provider was notified the same day. Parent was not notified until Monday, October 13, three days later. The child reportedly had no fever but was fussier than usual over the weekend. No additional symptoms or complications were observed. No medical treatment was required. Patient monitored at home with no adverse outcome.

Current illness

Seen in clinic on 09/08/2025 and diagnosed with bilateral otitis media. Completed a 10-day course of amoxicillin. No current illness at time of vaccination.

Medical history

none

Other medications

none

Allergies

NKDA

Lab data

NONE