Ringworm is tough to rule out when there is patchy hairloss in cats without doing a culture for it. This is not usually too expensive to do. Ringworm can mimic a lot of other skin problems but most of the time when we see it there is some scaling or scabbiness, too. Hello, My daughter recently got ringworm on her arm. I have had the cat for 3 weeks now and nothing like this has ever happened before.
Some cats can carry the ringworm fungus without any apparent sign of illness at all.
Dermatophyte infection can be picked up from the environment as well as from cats but it does seem suspicious that you just got the cat and your daughter has a new ringworm infection. It would be best to have your cat checked for this. The best way to avoid this is to have your vet check your cat's stool for roundworms and treat if they are present. Hi I have just found out one of my cats has round worms. Thank you so much for your time in answering my questions.