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Report #2885852

Received Feb 17, 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
Age unknown
State
CA
Recovered
Unknown
Vaccinated
Feb 10, 2026
Onset
Feb 10, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
PNC21PNEUMO (CAPVAXIVE)MERCK & CO. INC.UNKZ007870

Symptoms (3)

No adverse eventProduct distribution issueProduct storage error

Symptom narrative

No adverse effects were reported; Medical Assistant called to report the inadvertent administration of CAPVAXIVE that SANOFI stated was non-viable due to extended shipping duration; This spontaneous report was received from a medical assistant and refers to a 58-year-old female patient. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 26-Jan-2026, the Pneumococcal 21-valent Conjugate Vaccine (CAPVAXIVE) was shipped on and was not received until 06-Feb-2026. On 10-Feb-2026, the patient was inadvertently vaccinated with a dose of Pneumococcal 21-valent Conjugate Vaccine (CAPVAXIVE) injection 168 mcg/ml (lot #Z007870 with valid expiration date reported as 23-Oct-2026) 0.5 mL (route of administration and vaccination site were not reported) administered for prophylaxis. The vaccine was non-viable due to extended shipping duration. The vaccine was placed in the refrigerator with a "do not use" tag attached to it, while waiting for a return shipping label to be sent, and a nurse missed the tag and accidentally administered it to a patient (product storage error). No adverse effects were reported (no adverse event). No additional adverse event (AE) and no product quality complaint (PQC) was noted.