The other finding from observing anti-vax network graphs is that despite the vast majority vaccinating---national vaccination rates remain above 90 percent---there is no offsetting pro-vaccine Twitter machine; most parents simply vaccinate and move on with their lives. People don't organize in groups around everyday life-saving measures; there is no pro-seatbelt activist community on Twitter. The recent emergence, lack of central coordination, and weak connections seen among pro-vaccine Twitter users, who often use the hashtag #vaccineswork, means that the pro-vax message (in green) is not amplified to the same degree.
“Tweetiatrician” doctors, lawyers, and pro-vaccine parents often do attempt to join the conversation around the antivax hashtags. Unfortunately, many of the most active accounts experience the same attention received by the legislators: They become the target of harassment that includes phone calls to their places of employment, tweets posting identifying information or photos of their children, or warnings that they are being watched. Pro-vaccine activists and legislators alike often encounter paranoia when they attempt to engage the anti-vax community. They face accusations of being shills paid by Big Pharma to sway the narrative and keep “vaccine choice” activists from spreading The Truth.