I have to house cats and I'm afraid to invite any cats communicable disease near my home. When my cat got out and was lost for two weeks, (I found him) I walked my neighborhood 3 times per day looking for him. I found many people who feed the strays. I was so thankful to have people on the lookout for my kitty. Someone else just talked about putting a box outside and feeding cats during the winter. Three kittens where huddled in the box. One ran off and she found the other two a home. I would love to feed the stays but I don't know if the risks outweigh feeding the hungry kitties. Also, I did this once and watching for one cat that I grew attached to and he left me hold him and snuggle him after a while became an obsession for me. I wanted to care for him. I tried to take him to the vet when he came around during the day but he got away from me. All the other times I saw him was at night.