Report #2864040

Received Oct 7, 2025

ER / ED visit

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: Male
Age: 17 yrs
State: MA
Recovered: Not recovered
Vaccinated: Oct 6, 2025
Onset: Oct 6, 2025
Days to onset: 0
Hospital days: —

Vaccines (2)

Type	Name	Manufacturer	Dose	Lot	Route / Site
FLU3	INFLUENZA (SEASONAL) (FLULAVAL)	GLAXOSMITHKLINE BIOLOGICALS	N/A	FH4YR	IM / RA
MENB	MENINGOCOCCAL B (TRUMENBA)	PFIZER\WYETH	1	LW8911	IM / LA

Symptoms (15)

Activated partial thromboplastin timeArnold-Chiari malformationComputerised tomogram head abnormalCryingDifferential white blood cell countFull blood countHeadacheImpaired driving abilityInternational normalised ratioMetabolic function testMononucleosis heterophile testMuscle spasmsMusculoskeletal stiffnessNeutrophil count increasedWhite blood cell count increased

Symptom narrative

Received vaccines at yearly physical around 4:00pm on 10/7/25. While driving home, had sudden onset headache, neck stiffness, bilateral cramping in the ankles and knees, and was hysterically crying. He had to pull over and asked Dad to drive. Dad brought him to Urgent Care who recommended the ER. In the ER he had a head CT without contrast which showed a Borderline Chiari malformation. They also did labs which showed elevated white count and neutrophils and is most likely due to an immune system response to the vaccines. They gave him a dose of Tylenol which provided great relief of his headache. He was discharged home in stable condition.

Current illness

None

Medical history

Solitary Kidney, Seasonal Allergies, Anxiety, Psoriasis of tongue

Other medications

Tazarotene, Winlevi, dexAMETHasone mouth rinse, Fluconazole

Allergies

Feather

Lab data

10/06/25 Head CT, lab work: CBC diff, CMP, INR, PTT, Mono