A must listen ! This lecture separates fact from fiction in the current debate over measles. It addresses what herd immunity is and what it is not, in both the pre-vaccine and vaccine eras. It examines the consequences - real and potential - for vaccines that do not reproduce natural immunity. It addresses the question of should we fear measles and if so, why? https://www.youtube.com/watch?v=_MgMN-rhi8g #science #vaccines #measles #fact #fiction