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Report #2864380

Received Oct 8, 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
4 yrs
State
MO
Recovered
Unknown
Vaccinated
Sep 26, 2025
Onset
—
Days to onset
—
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
UNKVACCINE NOT SPECIFIED (NO BRAND NAME)UNKNOWN MANUFACTURERUNK——
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKZ008427—

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

The nurse is reporting that a patient received improperly stored vaccine; no adverse event; This spontaneous report was received from a Nurse and refers to a currently 4-year-old patient of unknown gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. The vaccine was improperly stored at a temperature of 49.29 F for a time frame of 5 minutes. There were no previous temperature excursions. On an unknown date, the patient started therapy with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) (lot #Z008427 has been verified to be valid for this product, expiration date confirmed as 06-May-2027) 1 dosage form as prophylaxis (route of administration was not reported). The vaccine was reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (lot # and expiration date were not reported). No additional adverse event was reported. Follow up information has been received from a pharmacist on 03-Oct-2025. The reporter mentioned that the patient and product details reported before was right. The patient has no comorbid conditions. It was confirmed that the patient also received some concomitant therapies on the same day 26-Sep-2025; Diphtheria vaccine toxoid;Pertussis vaccine acellular;Tetanus vaccine toxoid (DTap) and Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine, Live lyophilisate and solvent for solution for injection (M-M-R II), which was reconstituted with sterile diluent Solution for injection. On 26-Sep-2025, the patient was vaccinated with the vaccine involved in the temperature excursion with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX). Additional information is not expected.

Other medications

M-M-RII; DTap; MMR sterile diluent