Be strong King. You are strong enough to help guide her to the right path. Shaming or treating her like an idiot will not get to the result you want (not implying you will or do, but it’s easy for them to perceive present info as an attack). Emphasize that you care for them both and do not want to take an added risk at this time with something that doesn’t have more time and testing supporting it. Asbestos was hailed as a miracle material until later it was found to kill people. Time reveals all, and you can always get the jab, but you can never un-get it.