how to tell a friend that her love interest is HIV+?

[tripmom]

a friend of mine has shown interest in a mother of my learner who is HiV+

i came to know of the mother's status when she came to register her child in 2017 at the school i teach at (the card has to be presented to prove vaccinations taken or missed)

for context...

in some rural parts of south africa children clinic cards showed the mothers HIV status if the child was birthed in a public hospital (i think children born after 2014/2015 cards dont disclose)

how do i warn my friend without risking my job? i should i trust that he will request they do tests?

Some reassuring and some awful responses here. Despite eduction and major advances in medication and knowledge around HIV transmission, the problem of stigma still exists.
If she is taking anti retrovirals and has an undetectable viral load there is ZERO risk of transmission.
You cannot and should not breach her confidentiality and I would question your professionalism if you think it acceptable to breach confidentiality.