Received Nov 19, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| UNK | VACCINE NOT SPECIFIED (NO BRAND NAME) | UNKNOWN MANUFACTURER | UNK | 948402 | IM / LA |
Subacute thyroiditis; This spontaneous case, initially received on 07-Nov-2025, was reported by a non-health professional and concerns a patient of unknown age/gender. Administration of company suspect drug: On 16-Oct-2025, the patient received Flucelvax (TIV) for Indication not reported, Dose regimen: Not reported, Route of administration: Intramuscular, Anatomical site: Left Deltoid, Lot number: 948402. No additional suspect drugs. Adverse reactions/events and outcomes: On an unknown date, the patient experienced subacute thyroiditis (outcome: Not Reported). The patient developed subacute thyroiditis a few days after flu shot. The patient was in the midst of testing/ultrasound however this is the current diagnosis and it's not fun to say the least. The patient received the flu shot at patient current workplace. The patient had submitted a VAERS adverse event form online. The patient can't find much literature on the web about subacute thyroiditis following flu vaccine and was hoping for some information from you. Flucelvax (TIV) action taken: Not Applicable Reporter's assessment: The reporter did not provide the seriousness and causality assessment.; Reporter's Comments: Due to the spontaneous nature of the case, the event is considered related for reporting purposes.
Comments: None