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Report #2859756

Received Sep 18, 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
Male
Age
65 yrs
State
CA
Recovered
Unknown
Vaccinated
Aug 5, 2025
Onset
Aug 5, 2025
Days to onset
0
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
MENMENINGOCOCCAL (NO BRAND NAME)UNKNOWN MANUFACTURERUNKU8493A AOT
UNKVACCINE NOT SPECIFIED (NO BRAND NAME)UNKNOWN MANUFACTURERUNK—OT

Symptoms (3)

No adverse eventProduct preparation errorWrong product administered

Symptom narrative

No adverse event; Was supposed to receive MMR instead using correct diluent, was reconstitued with Menquadfi; Wrong product administered; This spontaneous report was received from an Other-health professional and refers to a 65-year-old male patient. The patient's medical history, concurrent conditions, concomitant therapies, drug reactions or allergies were not reported. On 05-Aug-2025, the patient was vaccinated with a dose of Measles, Mumps, and Rubella (M-M-R) vaccine (manufacturer unknown) (lot #, expiration date, strength, dose number, anatomical location not provided); which was supposed to be reconstituted with sterile diluent; however, it was reconstituted with Meningococcal vaccine A/C/Y/W conj (tet tox) (MENQUADFI) Solution for injection (lot #U8493A A, expiration date: 31-May-2028) (wrong diluent used), and was administered intramuscular as prophylactic vaccination. The patient was not supposed to get Meningococcal vaccine A/C/Y/W conj (tet tox) (MENQUADFI) at all (wrong product administered). No reported adverse events.; Sender's Comments: Priority : 5 , Is case serious : No , Index user : Index date : 2025-09-03 , MNSC number : , CLIC number : , ESTAR number : , IRMS number : GS / 2025SA229864 , Central date : 2025-09-03 , Classification : DMC, Attachment description : Post Marketing Basic , Safety case number :