Received Apr 13, 2026
Reports are unverified and do not show that a vaccine caused an event. Full disclaimer
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMR | MEASLES + MUMPS + RUBELLA (MMR II) | MERCK & CO. INC. | UNK | Z005996 | — |
| MMR | MEASLES + MUMPS + RUBELLA (MMR II) | MERCK & CO. INC. | UNK | 2173884 | — |
After vaccinating she pulled the needle out, realized there was still product inside and tried pushing the plunger and it would not budge.; After vaccinating she pulled the needle out, realized there was still product inside; and tried pushing the plunger and it would not budge.; This spontaneous report was received from a nurse and refers to a 12-month-old patient of unknown gender. No information regarding the patient's pertinent medical history, drug reactions or allergies, or concomitant therapies was provided On 19-Mar-2026, the patient was vaccinated with Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine, Live (M-M-R II), for prophylaxis (dose, route of administration and anatomical location not provided, lot number Z005996, which was verified to be valid, expiration date established on 13-Mar-2027), the suspect vaccine was reconstituted with sterile diluent (BAXTER STERILE DILUENT), (lot number established as 2173884, expiration date on 13-Dec-2027). On 19-Mar-2026, during the administration, some of the product remained in the syringe, (Accidental underdose) tried to push the rest out and the plunger wouldn't budge (Poor quality product administered, device issue).