I went to a lecture last Thursday night, Lady Mary’s Legacy: Vaccine Advocacy from the Turkish Embassy Letters to Video Games, after being alerted by my friend Jennifer Margulis, who lives on the other side of the country, that it would be happening.Lisa Rosner, Ph.D., author of the new book Vaccination and Its Critics: A Documentary and Reference Guide, has apparently been traveling the country giving this lecture which was to cover approximately 300 years of “vaccine advocacy” in 30 minutes, after which Rosner would introduce us to the newest tool in the vaccine-advocacy arsenal: a video game.