Mission
We are democratizing vaccination by changing it from “according to schedule” to a customizable choice. VaxCalc organizes vaccine ingredients, schedules, injury data, and cross-ingredient risk patterns so parents can evaluate cumulative exposure and risk with clarity and independence.
Why I Built It
When my daughter was 12 months old, she had a severe reaction to a small amount of peanut butter. I began reading every ingredient label that entered her body.
I assumed vaccines had been studied the same way.
When I started reading the package inserts and injury data, I realized parents did not have a structured way to evaluate ingredients, cumulative exposure, or individualized risk.
So I built one.
Who I Am
I’m Chris Downey — dad of three, software developer, and independent vaccine researcher.
I built VaxCalc to create a structured, transparent system parents can use to make their own informed decisions.