Report #2849799

Received Jul 15, 2025

Life-threateningHospitalizedOffice visitDisabled

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: 35 yrs
State: FL
Recovered: Recovered
Vaccinated: Oct 27, 2021
Onset: Aug 2, 2023
Days to onset: 644
Hospital days: 3

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
COVID19	COVID19 (COVID19 (JANSSEN))	JANSSEN	1	1822811	SYR / RA

Symptoms (7)

ChemotherapyColon cancer stage IIIColon operationGenetic testingImaging procedureInvestigationIron deficiency anaemia

Symptom narrative

I received the Johnson & Johnson COVID-19 vaccine on 10/27/2021. At the time of vaccination, I was healthy with no known genetic or familial predisposition for colon cancer. On 8/2/2023, I was diagnosed with iron deficiency anemia. Follow-up screenings led to a diagnosis of Stage 3c colon cancer on 8/22/2024. I have since undergone major surgery, chemotherapy, and multiple imaging scans. Genetic testing has ruled out any hereditary factors. My oncologists have not confirmed a direct link to the vaccine, but also have not ruled it out. This report is filed to document the timeline and establish a potential association between the vaccine and this rare, late-onset diagnosis in an otherwise healthy individual.

Current illness

none

Medical history

none at the time of vaccine

Other medications

Omeprazole 40mg & metformin 500

Allergies

none known