I'm not an antivaxer but they're going all out on them. The truth though?
"Daniel Salmon, the director of the Institute of Vaccine Safety at Johns Hopkins University, told ABC News that the involvement of a foreign individual or an American who recently traveled to a foreign country is "typically" how measles outbreaks start in the U.S."
https://abcnews.go.com/Health/patient-measles-outbreak-foreigner-common-outbreaks-start/story?id=60884130