You hear it all the time: “Vaccines are safe and effective!” It’s in every news broadcast and every news article, 100% of the time. And what about these common catchphrases: “We need 95% vaccine coverage to achieve herd immunity,” “Vaccine reactions are one-in-a-million,” and “The autism/vaccine connection has been de-bunked!” Are these scientific facts or carefully-crafted media sound bites as part of a PR campaign designed to shape public opinion on vaccines? bit.ly/vaxconv