What is a Vaccine really?!

Dr. Bret Weinstein is an evolutionary biologist, podcaster, and author.
He is the author, along with his wife, fellow biologist Dr. Heather Heying, of "A Hunter-Gatherer's Guide to the 21st Century: Evolution and the Challenges of Modern Life." Together, they are the co-hosts of "The DarkHorse Podcast."

www.bretweinstein.net