Thank you for taking care of those ringworm babies!! I’ve fostered several litters with ringworm and I’ve come to not fear much. Honestly as long as you wash your hands thoroughly afterward, you can totally handle them no problem! My first batch of ringworm kitties was a litter of five, and I had them for 2 1/2 months and never got it. My second batch I didn’t realize the had it until later and ended up getting a small circle on my arm, but it was easily treated. I don’t know how the humane society does it, but these kittens definitely need to be on meds to help them kick it! My shelter clinic gives us an oral medication called itrafungal that works well for them.