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Report #2887443

Received Mar 3, 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
55 yrs
State
NY
Recovered
Unknown
Vaccinated
Feb 4, 2026
Onset
Feb 4, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ013988

Symptoms (2)

No adverse eventWrong product administered

Symptom narrative

No additional AE; Nurse practitioner calling to report that a dose of PROQUAD was accidently given to a 55-year-old female. The nurse was supposed to give an MMRII vaccine. No additional AE, no PQC. No additional information.; This spontaneous report was received from a nurse practitioner (also reported as nurse prescriber) and referred to a 55-year-old female patient. The patient's medical history was not reported. The patient's concurrent conditions were not reported. Concomitant therapies were not reported. On 04-Feb-2026, the patient was accidently vaccinated with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD)(1 dose, frequency: total, lot #Z013988, expiration date: 02-Mar-2027, strength and route were unknown) for prophylaxis, the vaccine was reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (lot # and expiration date were unknown). The patient was supposed to be vaccinated with Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine (MMR II) which was reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (dose, frequency, strength, route, lot# and expiration date were unknown) (Wrong vaccine administered). No additional adverse event was reported. Lot# is being requested and will be submitted if received.

Other medications

Sterile diluent