If you're interested in learning more about vaccines, I would suggest this episode from the Joe Rogan podcast with Dr. Suzanne Humphries :
https://podnews.net/podcast/i7htv
2294 - Dr. Suzanne Humphries
Dr Humphries is a conventionally educated medical doctor who was a participant in conventional hospital systems from 1989 until 2011 as an internist and nephrologist. She left her conventional hospital position in good standing, of her own volition in 2011. Since then, she’s been furthering her research into the medical literature on vaccines, immunity, history, and functional medicine. She is the author of "Dissolving Illusions: Disease, Vaccines, and the Forgotten History."