Well, its always a good idea to keep a sick tortoise in a separate (or hospital) habitat until they're well, however, your tortoise doesn't have a disease that will continue to be contagious after he's not showing symptoms. He'll be fine with other tortoises in the future. Unless a vet is a tortoise keeper, they just don't have the time or inclination to keep up on all the research done on turtles and tortoises. When they treat mostly cats and dogs, that's where they spend their research time. That's why its such a good idea to find a reptile or tortoise vet who actually has tortoise experience.
I hope we all have put your mind at ease about your tortoise. Keep us informed about his well-being.
I hope we all have put your mind at ease about your tortoise. Keep us informed about his well-being.