VACCINATIONS!!

Moms!! Please help me as I’m at a crossroads and don’t know what to do. My daughter is in PT and OT for a brachial plexus injury that occurred at the time of birth. Well there is a little boy that comes to therapy at the same time as her on Mondays, and his mother informed me today that she has not vaccinated him at all and doesn’t plan to until he’s 2.5. What do I do? She hasn’t had all her vaccinations yet, and I would honestly snap if she got something because of this mother’s decision to potentially harm every child around her child.