Received Apr 22, 2026
Reports are unverified and do not show that a vaccine caused an event. Full disclaimer
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| RV5 | ROTAVIRUS (ROTATEQ) | MERCK & CO. INC. | UNK | 2202418 | — |
No symptoms were reported; administration of improperly stored vaccines to multiple patients; This spontaneous report was received from a medical assistant and refers to a 4-month-old patient of unknown gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 15-Apr-2026, the patient was vaccinated with improperly stored dose of Rotavirus Vaccine, Live, Oral, Pentavalent (Rotateq), lot #2202418, expiration date: 20-May-2027 (formulation, exact dose, route of administration and anatomical location were not provided) for prophylaxis. Administered dose of vaccine was exposed to the temperature excursion above 9 degrees Celsius (C) (14.9 C) for 298 hours (product storage error). No previous temperature excursion. No symptoms were reported (no adverse event).