Ontario urging measles vaccinations amid worst outbreak in more than a decade

In case anyone else is wondering about boosters:

"Re-immunization with measles-containing vaccine after age and risk appropriate vaccination is not necessary."

If you were born at a time when 2 doses weren't given, they'll give you an immunity check, at least I was (in Toronto.) I guess if you come back immune even with just the 1, they don't want to waste another.