Fair rating? 0 0NOVA· Season 42 · Episode 1Vaccines—Calling the ShotsS42E01·5.3·September 10, 2014·1h·PBSExamine the science behind vaccinations, the return of preventable diseases and the risks of opting out.Streaming on (US) See allShare#22In Season 42of 22 rated episodes#282All-timeof 287 rated episodes−2.4vs season avgSeason 42 averages 7.72014First airedSeptember 10, 2014PreviousD-Day's Sunken SecretsS41E22 · 7.5NextRise of the HackersS42E02 · 8.0Keep going
