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Report #2851822

Received Jul 30, 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
Age unknown
State
TX
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKZ003882—

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

Medical Assistant calling to report inadvertently administering VARIVAX vaccine after experiencing a temperature excursion.; No additional AE; This spontaneous report was received from medical assistant and refers to a patient of unknown age and gender. The patient's medical history and concurrent conditions were not reported. Concomitant medications included Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine, Live (M-M-R II) . On an unknown date, the patient was inadvertently vaccinated with Varicella Virus Vaccine Live (Oka- Merck) (VARIVAX), (invalid lot # Z003882, expiration date: 02-MAR-2027) for prophylaxis. The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT) (lot # and expiration date were not provided) after experiencing a temperature excursion of -13.3C in time frame of 144 hours 0 minutes and 0 seconds (product storage error). No previous temperature excursion was noted. No additional adverse event (AE) was reported.; Sender's Comments: Priority : 5 , Is case serious : No , Index user :, Index date : 2025-07-10 , MNSC number : , CLIC number : , ESTAR number : , IRMS number : Patient 4 , Central date : 2025-07-10 , Classification : DMC, Attachment description : Post Marketing Basic , Safety case number :

Other medications

MMR II; Sterile diluent