How do vaccines work? - Kelwalin Dhanasarnsombut

TED-Ed · 3.6M views · 2015 · 4:36

Open on YouTube

Medicine & infectious diseaseother

Why the open web links it

Explains the science of how vaccines trigger the immune system to recognize and fight pathogens.

Linked by 33 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including ted.com, illinois.edu, pressbooks.pub, scrippsnews.com, immunize.org.