Measles outbreak tracker

Well I can understand mother/infant but how would the baby get the vaccine if its pretty much infected from conception? Is it just something to help fight off the infection? Is vaccinating while already infected a thing? And the second part... so it's only in case of if the child could be abused that they would need it?

Ok, I'm more confused on that one. The other ones make sense as to why we need them, that one makes none
Yes, idea is that it would still help even after the birth. And even if the mother is negative for hep B at birth.

I can say that I got this question wrong so many times in OB that I won’t ever forget it again, because I also thought it was strange.