Is It Safe to Visit My Grandchildren?

Misunderstanding COVID vaccine 90% efficacy

Photo by Dragon Pan on Unsplash

By Amy Rogers, MD, PhD

I shared a recent Zoom call with a woman who is fully vaccinated against COVID-19. “Fully vaccinated” means she is at least 14 days past her second dose of one of the mRNA vaccines made by Moderna or Pfizer.

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Dr. Amy Rogers

Dr. Amy Rogers

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Amy Rogers, MD, PhD, is a Harvard-educated scientist, novelist, journalist, and educator. She blogs about coronavirus at AmyRogers.com