Your dad may have had it and not known. I was exposed as a 6 month old infant and my parents were told my case was so mild I’d surely get it again. I never did. Turns out my immunity is fine
Did she have to get revaccinated? We were required to if titers were not adequate. Turns out all mine were fine, including for the chicken pox I got but the doctor thought wasn’t enough for immunity. OTOH I have been vaccinated for Hep B multiple times yet still show no immunity. It may be her immune system.
But
@striker1064 caught chickenpox ‘in the wild’ and still got shingles as a young person, if I understand correctly. So the opposite of your theory.
We will be there 2nd week in June. I booked Courtyard on Harbor but waiting for the Fairfield to open award nights and will switch for less points.