My point was that the cluster of unvaccinated folks in Brooklyn shows an uptick in people betting that the risk of something like this happening surpassed the risks of measles. Many/most people in Brooklyn eventually got vaccinated after the outbreak started, showing that they weren’t philosophically opposed to vaccines, but rather were making a bet based on perceived risk.

That said, the epidemic itself is thought to have started as an offshoot of the epidemic in Israel. And right before the epidemic in Israel there was one in Pakistan, so there may be a direct connection as well.