Your Local Epidemiologist in New York

Your Local Epidemiologist in New York

As an infant botulism survivor, the ByHeart formula outbreak hits home

What parents need to know

Marisa Donnelly, PhD's avatar
Marisa Donnelly, PhD
Nov 12, 2025
∙ Paid

When I was just two months old, I suddenly went limp. I stopped eating. I was too weak to even cry. My parents rushed me to the ER where the astute clinicians immediately realized something was very wrong. I was airlifted to a children’s hospital two hours away. The diagnosis? Infant botulism, a rare and life-threatening infection that fewer than 200 ba…

User's avatar

Continue reading this post for free, courtesy of Katelyn Jetelina.

Or purchase a paid subscription.
© 2026 Your Local Epidemiologist · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture