This can make for some nasty fights with other cats present. Generally, introducing a feral cat to your own home cat population is a bad idea. Bites and Scratches. In making contact, let the cat set the pace or you may get scratched or bitten. Wear padded gloves and long sleeves as a precaution.
Feral cats can inflict some serious damage.
If a cat bite breaks the skin, wash it well and go immediately to a doctor. Cats' nails and teeth harbor bacteria and the risk of infection is very high. If you get scratched, wash out the wound and keep an eye out for infection and fever. Rabies, although feared, is relatively rare among humans. Still, you might want to get a pre-exposure vaccination, and have all ferals vaccinated.