Now please no smart *** answers, I have a pitbull who is?

honestly a great dog but he chases squirrels all day and i just went to let him in the house and he had a squirrel hanging out of his mouth and he burried it in the yard. I am afraid to let him in cause of possible disease from the squirrel? Does anyone know what to do or if it is safe and please dont tell me to make squirrel stew. thanks