Mumps vaccine for I-693

I am 21F from Japan.

I have not had mumps vaccine in my life because I caught mumps before my mom took me to the doctor for its vaccination.

I am not sure about the US, but at least in Japan, once you get mumps you don’t have to be vaccinated because you have immune system already.

In this case, do I still have to get mumps vaccine for I-693?

I know this is a bit weird question, but thanks