taken the rsv vaccine in September of 2022 and now again in December of 2024. It was in error; This non-serious case was reported by a consumer via interactive digital media and described the occurrence of extra dose administered in a patient who received RSVPreF3 adjuvanted (RSV vaccine) for prophylaxis. Previously administered products included rsv vaccine (in September 2022). In DEC-2024, the patient received RSV vaccine. In DEC-2024, an unknown time after receiving RSV vaccine, the patient experienced extra dose administered (Verbatim: taken the rsv vaccine in September of 2022 and now again in December of 2024. It was in error). The outcome of the extra dose administered was unknown. Additional Information: GSK Receipt Date: 02-JAN-2025 The patient received RSV vaccine in September of 2022 and now again in December of 2024 it was in error, which led extra dose administered. The patient asked was there any harmful side effects from double dosing, were there harmful side effects from double dosing the RSV vaccine.