Received Jun 12, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| YF | YELLOW FEVER (YF-VAX) | SANOFI PASTEUR | UNK | UK407U1 | SC / LA |
inappropriate use due to YF-Vax diluted with a different diluent and given to a patient with no AE; Initial information received on 10-Jun-2026 regarding an unsolicited valid non-serious case received from an other or unknown healthcare professional (HCP). This case involves a 23-year-old male patient who had inappropriate use due to YELLOW FEVER VACCINE (YF-VAX) diluted with a different diluent and given to a patient with no adverse event (AE). The patient's past medical history, medical treatment(s), vaccination(s), and family history were not provided. Concomitant medications included Tdap and Typhoid. On 09-Jun-2026, the patient received a 0.5 mL once daily dose of YELLOW FEVER VACCINE [YF-VAX] solution for injection (batch number: UK407U1, expiry date: 01-Jul-2027) (strength: unknown) via subcutaneous route in an unknown administration site for immunization and inappropriate use due to YF-Vax diluted with a different diluent and given to a patient with no AE (adverse event) (product preparation issue, latency: same day). Action taken: Not applicable. This suspected adverse reaction report is submitted and classified as a medication error solely and exclusively to ensure the marketing authorization holder's compliance with the requirements set out in the Directive 2001/83/EC and Module VI of the Good Pharmacovigilance Practices. The classification as a medication error is in no way intended, nor should it be interpreted or construed as an allegation or claim made by the marketing authorization holder that any third party has contributed to or is to be held liable for the occurrence of this medication error.
Comments: NONE
Tdap; Typhoid