Our bunny Molly had syphillis when she was a baby. She probably contracted it during birth. She started to get a really red irritated nose. We took her to the vet and they had no idea what it was but contacted veterinery college and showed pictures of her and they suggested syphillis. She was given penicillin and it cleared up in a few weeks. Our other rabbit was also given injections to make sure he did not contract it. Our cost for vet care was $1000.00.