I don’t know anything about the problems faced by those communities you named.
A frum friend of mine told me today that the rumor is an Israeli kid, vaccinated with the live polio vaccine, had just moved into the community and was the likely carrier, and will likely be blamed, completely unfairly — instead of the fact that Hasids in Monsey have a ghastly problem with under-vaccination and non-vaccination.
Yeah, there’s a very good reason that people bring up this same community every time there’s a preventable disease outbreak.
https://www.statista.com/statistics/186678/new-cases-of-meas...
What about the years where an Oregon community surpassed the Orthodox Jew community in question?
Seems like you just want to selectively take an unfortunate outlier from 3 years ago and persecute a community for it even though it's not the norm.