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Report #2853507

Received Aug 11, 2025

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Female
Age
Age unknown
State
—
Recovered
Not recovered
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (MODERNA))MODERNA2—IM

Symptoms (1)

Brain fog

Symptom narrative

brain fogging issues related to this specific vaccine; This spontaneous case was reported by a consumer and describes the occurrence of BRAIN FOG (brain fogging issues related to this specific vaccine) in a female patient of an unknown age who received SPIKEVAX NOS (SPIKEVAX NOS) for COVID-19 prophylaxis. No Medical History information was reported. On an unknown date, the patient received second dose of SPIKEVAX NOS (SPIKEVAX NOS) (Intramuscular use) 1 dosage form. On an unknown date, the patient experienced BRAIN FOG (brain fogging issues related to this specific vaccine). At the time of the report, BRAIN FOG (brain fogging issues related to this specific vaccine) had not resolved. No concomitant medication was reported. She was confused about if she had reactions upon getting the second vaccine and she had brain fogging issues related to this specific vaccine. It was unknown if the patient experienced any additional symptoms or events. No treatment medication was reported.