Medical Myths, Lies, and Half-Truths: What We Think We Know May Be Hurting Us S:1 E:10 Vaccination Benefits – How Well Vaccines Work

S:1 E:10 Vaccination Benefits – How Well Vaccines Work Vaccines are perhaps the single safest and most effective preventive health measure ever devised. In the first of two episodes on this subject, learn the history of vaccination, what types of vaccines doctors use to stave off specific diseases, and why some people still question whether this technique works.