It’s standard, but due to antivaxxers, there are large numbers of children unvaccinated against Measles.
Until the vax mandate and the screwing around with reporting adverse incidents, “anti-vaxxers” who had a problem with vaccines generally were isolated weirdos. One is my grandson’s other grandpa. I’d venture that because of the mandate, adherents to this older form of anti-vaxxing now has many new adherents. Thanks a lot, Brandon, Brandeau.