Re: MS and Mono -- is there any risk?
Hi, bruno. I completely understand your concern. Although there is a suspected link between EBV and MS, it's doubtful it's just that alone. It's a little like the chicken and the egg -- is EBV the trigger or does it just create the right environment in the body and make us more susceptible to developing MS? As you said, not everyone with EBV goes on to get mono.
I'm not a doctor but I think that if it's not full blown mono/chronic fatigue (inactive EBV) it should be okay. Perhaps you can ask your father's MS specialist about this but again, unfortunately there is not a definitive answer.
Although MS is not considered to be hereditary, there is a genetic component. That is why you sometimes see it run in families -- but it depends on your genetic blueprint. (And who knows, in some of us maybe a gene that's been mutated?! Like many others, it's nowhere in MY family, at least that I know of.) There's unfortunately just so much that is unknown. Although I don't think there's a problem with this girl, it's good that you're being aware and asking these questions.
Good luck to you AND your dad!