Feeling like people aren't taking me seriously when I say they need to be vaccinated when they visit…

Feeling like people aren't taking me seriously when I say they need to be vaccinated when they visit me and the new baby... is it wrong if I make it more real and serious to them and tell them he has a immune deficiency (which is essentially the same thing but sounds more serious) and can't be visited if you don't have vaccines until he gets his vaccines?