The Historical Perspective on Vaccines

Did you ever wonder how vaccines came to be? (Touted as the best thing ever, studies have found much less chronic disease in the unvaccinated.) Richard Pitcairn, DVM, PhD, who has taught public health and epidemiology at Washington State, explores the historical origins of vaccination, starting with Jenner, with observations on their use in Smallpox, Polio and Measles that are relevant to current times.
•••••SEE MORE DR.PITCAIRN VIDEOS at his new channel "Dr. Richard Pitcairn"
Also visit: www.drpitcairn.com