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Report #2885727

Received Feb 16, 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
Unknown
Age
Age unknown
State
IA
Recovered
Unknown
Vaccinated
Onset
Feb 6, 2026
Days to onset
Hospital days

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
PNC21PNEUMO (CAPVAXIVE)MERCK & CO. INC.UNKZ013321
TDAPTDAP (NO BRAND NAME)UNKNOWN MANUFACTURERUNK

Symptoms (2)

No adverse eventWrong product administered

Symptom narrative

No additional AE; adult patient was mistaken given CAPVAXIVE instead of Tdap due to a human error; adult patient was mistaken given CAPVAXIVE instead of Tdap due to a human error; Information has been received from Business Partner. This Spontaneous report was received from Other health professional and referred to a/an patient of unknown age and gender. The patient's medical history was not reported. The patient's past medications were not reported. The patient's concomitant medications were not reported. On an unknown date, patient started therapy with Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 (1.00 dosage form) (Batch/Lot Number: z013321) (Expiration date: 02-Jun-2027) dose form was Solution for injection (Dose Text: 1 dose). On an unknown date, the patient started therapy with Tdap (Diphtheria vaccine toxoid;Pertussis vaccine acellular;Tetanus vaccine toxoid). The patient started therapy with Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 for the treatment of Prophylaxis, The patient started therapy with Tdap (Diphtheria vaccine toxoid;Pertussis vaccine acellular;Tetanus vaccine toxoid) for the treatment of Prophylaxis, On 06-Feb-2026, the patient experienced adult patient was mistaken given CAPVAXIVE instead of Tdap due to a human error (Interchange of vaccine products). On 06-Feb-2026, the patient experienced adult patient was mistaken given CAPVAXIVE instead of Tdap due to a human error (Wrong product administered). On an unknown date, the patient experienced No additional AE (No adverse event). The Outcome of Wrong product administered was not provided. The Outcome of Interchange of vaccine products was not provided. The Outcome of No adverse event was not provided. The action taken with Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 regarding Wrong product administered was Not applicable with Not Applicable dechallenge and rechallenge results. The action taken with Tdap (Diphtheria vaccine toxoid;Pertussis vaccine acellular;Tetanus vaccine toxoid) was Not applicable, Case Assessments: Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 regarding Interchange of vaccine products with Not Applicable dechallenge and rechallenge results. Case Assessments: Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 regarding No adverse event with Not Applicable dechallenge and rechallenge results. The Other health professional considered the event Interchange of vaccine products (,) to be not assessed to Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347, the event No adverse event (,) to be not assessed to Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347, and the event Wrong product administered (,) to be not assessed to Pneumococcal 21-valent Conjugate Vaccine Solution for injection 114412038:4347 The Other health professional considered the event Interchange of vaccine products to be non-serious, the event No adverse event to be non-serious, and the event Wrong product administered to be non-serious