Listen to this doctor who gives level headed advice on vaccinations, diet, immune health, shingles, and the medical community in general. He discusses the history and the origins of the CDC. He has a lot of research experience as well as clinical expertise to offer. He tells what vaccines are important and cautions on too many to fast in child development years. He shares his success in treating shingles with B-12 over the years. Great reference video for those making decisions about vaccinating their children.