Report #2891020

Received Mar 27, 2026

HospitalizedER / ED visitOffice visit

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Overview

Sex: Female
Age: 8 yrs
State: DC
Recovered: Not recovered
Vaccinated: Dec 6, 2025
Onset: Dec 6, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
UNK	VACCINE NOT SPECIFIED (OTHER)	UNKNOWN MANUFACTURER	N/A	—	UN / UN

Symptoms (4)

Blood electrolytes normalComputerised tomogram head normalHaemoglobin normalHeadache

Symptom narrative

Patient returned to school on 12/6/2025, after routine pediatric health visit during which she received a season influenza vaccination. Several hours after returning to school she developed a headache and has continued to have headache continuously, every days since that day, at least until present day (3/27/2026)

Current illness

unknown

Medical history

asthma

Other medications

none

Allergies

none

Lab data

Head CT has been normal, basic laboratory testing has been normal (for example, normal hemoglobin, normal electrolytes)