Received Dec 17, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| COVID19 | COVID19 (COVID19 (PFIZER-BIONTECH)) | PFIZER\BIONTECH | UNK | — | — |
flu like symptoms; Fever; This is a spontaneous report received from a Consumer or other non HCP. A patient (age and gender not provided) received BNT162b2 (COMIRNATY), as dose number unknown,(booster) single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (Primary immunization series complete). The following information was reported: INFLUENZA LIKE ILLNESS (non-serious), outcome "unknown", described as "flu like symptoms"; PYREXIA (non-serious), outcome "unknown", described as "Fever". Additional information: The consumer stated that they had called with an unusual question. They reported that they had received a COVID-19 booster the previous day and were normally one of those individuals who experienced an idiosyncratic response, such as fever and flu-like symptoms, after vaccination. However, they noted that they had zero symptoms this time. The consumer confirmed that the vaccine administered was the Pfizer COVID-19 vaccine. When asked to clarify, the consumer confirmed that they did not experience fever after the vaccination and emphasized that this was unusual for them, as they typically had flu-like symptoms and fever after previous doses. They expressed concern that there might have been something wrong with the vaccine, the lot, or the needle mechanism, suggesting that it felt as though they had not received the vaccine at all. The consumer confirmed that they wanted to know if there was an issue with the vaccine lot and mentioned that they had received many prior doses with consistent reactions, unlike this time. No follow-up attempts are possible. Batch/lot number is not provided, and it cannot be obtained.