VAERS Explorer
Back to explore

Report #2825964

Received Feb 12, 2025

Life-threateningOffice 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
Female
Age
52 yrs
State
SC
Recovered
Not recovered
Vaccinated
Apr 1, 2021
Onset
Nov 1, 2022
Days to onset
579
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (PFIZER-BIONTECH))PFIZER\BIONTECH2—IM / RA

Symptoms (6)

Biopsy bone marrowBlood testCALR gene mutationEssential thrombocythaemiaGene mutation identification test positivePlatelet count increased

Symptom narrative

I received the Pfizer COVID vaccine in April and May of 2021. Prior to that vaccine series, my platelet counts were always in normal lab range. After the vaccine series, my platelet count rose continually and were outside the normal lab ranges. I went to a hematologist in March 2023 and after blood work, genetic testing and a bone marrow biopsy, I was diagnosed with essential thrombocytosis (ET) with a CALR mutation on exon 9 in September 2023. My correlation is the COVID vaccine series disrupted my genetics and caused the ET. I had no history of high platelets prior to the COVID vaccine series.

Current illness

N/A

Medical history

High blood pressure

Other medications

Losartan 100mg

Allergies

N/A

Lab data

Full bloodwork, genetic testing and bone marrow biopsy (September 2023)