I adopted two kittens from an animal shelter and unfortunetly one has ringworm. He is being treated with medication from my vet. I have gotten two ringworms and am being treated by my doctor. What I need to know and didn't ask is: How long is this kitten infectious? He is clearing up; hair is growing back in all the places he lost hair. I would like to give him the run of the house when he isn't infectious. When can I safely do this? I have other cats and dogs and don't want them infected. Did you all know that ringworm is actually a fungus that grows in the shape of a circl? Wish I hadn't needed to know that! Thanks, Candy