Yep, ringworm is transferrable between cats/humans. Both my Mum and I caught it many years ago from a litter of kittens and their Mum that set up camp on our patio on holiday in Fuerteventura. Their ears looked a bit scabby but we didn't know what it was and continued to cuddle, stroke and feed them.
I had Tiggy and her brother back then and was soooo worried about passing it to them. My solution was to keep the lesions covered with a square of micropore at all times (not so easy for my Mum as she had one on her forehead
). Not let the cats in my bedroom as that's the time your flesh is exposed to the sheets/duvet and the spores are deposited, any other time it's hidden by clothing. The same for the bathroom as towels would also come into contact with it.
It's highly contagious and a booger to eradicate from cats so please tell your OH to be extra careful
