Vaccines are both one of the most widely used and most widely misunderstood preventive medical treatments available. People have concerns about autism, efficacy, the promotion of unhealthy behaviors. We dig into the evidence on some of those topics, as well as take a look at the effectiveness of vaccines against some of the scariest disease of our time – including cancer.   NEJM study on vaccines and autism Lancet study on vaccines and autism Adverse Effects of Vaccines: Evidence and Causality an ebook by the Institute of Medicine that states, “The evidence favors rejection of a causal relationship between MMR vaccine and autism.” About Cancer vaccines 2014-2015 Flu vaccine info – why it was less effective, but did reduce disease severity Information on current research into an ebola vaccine     Check out this episode! Subscribe in iTunes