Report #2868409

Overview

Sex

Female

Age

30 yrs

State

MA

Recovered

Unknown

Vaccinated

Oct 16, 2025

Onset

Oct 17, 2025

Days to onset

1

Hospital days

—

Symptoms (3)

Symptom narrative

fogginess; chills; injection site pain; This spontaneous case was reported by a pharmacist and describes the occurrence of BRAIN FOG (fogginess), CHILLS (chills) and VACCINATION SITE PAIN (injection site pain) in a 30-year-old female patient who received mRNA-1273.251 (Spikevax LP.8.1 PFS) for COVID-19 prophylaxis. Co-suspect products included non-company products Influenza vaccine for an unknown indication and Diphtheria vaccine toxoid, Pertussis vaccine acellular, Tetanus vaccine toxoid (Tdap) for an unknown indication. Concurrent medical conditions included Migraine. On 16-Oct-2025, the patient received dose of mRNA-1273.251 (Spikevax LP.8.1 PFS) (Intramuscular use) 1 dosage form, dose of Influenza vaccine (unknown route) 1 dosage form and dose of Diphtheria vaccine toxoid, Pertussis vaccine acellular, Tetanus vaccine toxoid (Tdap) (unknown route) 1 dosage form. On 17-Oct-2025, the patient experienced BRAIN FOG (fogginess), CHILLS (chills) and VACCINATION SITE PAIN (injection site pain). At the time of the report, BRAIN FOG (fogginess), CHILLS (chills) and VACCINATION SITE PAIN (injection site pain) outcome was unknown. The action taken with mRNA-1273.251 (Spikevax LP.8.1 PFS) (Intramuscular use) was unknown. For mRNA-1273.251 (Spikevax LP.8.1 PFS) (Intramuscular use), the reporter did not provide any causality assessments. Concomitant medication was not provided. It was unknown if the patient had any additional medical history, concomitant disease or risk factor. It was unknown if the patient experienced any additional symptoms or events. There were no lab data or results available. Treatment medication was not reported. The reporter causality was not reported. Reporter did not allow further contact

Current illness

Migraine