Age: 68.0
Sex: F
Vaccine: COVID19
Symptoms: Amnesia, Vaccination site pain
Clinical narrative: Sudden memory loss few hours after dose/17MAR2024, developed sudden transient amnesia beginning the day after her latest Spikevax dose; 16MAR2024 received Spikevax and felt soreness at the vaccination site; This spontaneous case was reported by a patient and describes the occurrence of AMNESIA (Sudden memory loss few hours after dose/17MAR2024, developed sudden transient amnesia beginning the day after her latest Spikevax dose) and VACCINATION SITE PAIN (16MAR2024 received Spikevax and felt soreness at the vaccination site) in a 68-year-old female patient who received mRNA-1273.815 (SPIKEVAX 2023-2024 PFS) (batch no. 203G23A2) for COVID-19 prophylaxis.     Previously administered products included for Product used for unknown indication: Covid-19 vaccine and Covid-19 vaccine (had sore arm after vaccination). Past adverse reactions to the above products included Flu like symptoms with Covid-19 vaccine; and Pain in arm with Covid-19 vaccine. Concurrent medical conditions included Pre-diabetes and Hypercholesterolemia (takes red yeast rice as a supplement for cholesterol control but is not on a statin.).    On 16-Mar-2024, the patient received dose of mRNA-1273.815 (SPIKEVAX 2023-2024 PFS) (unknown route) .5 milliliter. On 16-Mar-2024,  after starting mRNA-1273.815 (SPIKEVAX 2023-2024 PFS), the patient experienced VACCINATION SITE PAIN (16MAR2024 received Spikevax and felt soreness at the vaccination site). On 17-Mar-2024, the patient experienced AMNESIA (Sudden memory loss few hours after dose/17MAR2024, developed sudden transient amnesia beginning the day after her latest Spikevax dose). On 17-Mar-2024, AMNESIA (Sudden memory loss few hours after dose/17MAR2024, developed sudden transient amnesia beginning the day after her latest Spikevax dose) and VACCINATION SITE PAIN (16MAR2024 received Spikevax and felt soreness at the vaccination site) had resolved.        For mRNA-1273.815 (SPIKEVAX 2023-2024 PFS) (Unknown), the reporter did not provide any causality assessments.   The concomitant medication was not reported by reporter.  The treatment medication was not reported by reporter.  She did not receive any other vaccines in the 4 weeks prior to COVID-19 vaccine. On 16-MAR-2024 she received Spikevax and felt soreness at the vaccination site. On 17-MAR-2024, she developed sudden transient amnesia. Patient's husband informed patient of events she had no recollection of. Memory lapses appeared to have lasted a few hours at a time. Patient does not remember watching a movie on Saturday night, rewatched the film in the morning and did not remember watching it. Also, could not remember several "family events" and had absolutely no memory of them the following day. Patient states nothing like this has ever happened to her before.   Most recent FOLLOW-UP information incorporated above includes: On 18-Mar-2024: Live follow-up received On 18-Mar-2024: Follow up received: event of amnesia was updated. Event of vaccination site pain was added. Reporters were added. On 18-Mar-2024: Live follow-up received: event of amnesia was updated and event start date was changed to 17-MAR-2024.