Hi Helene,
Is Sam/Sammy short for Sampson? When I was growing up our two cats were Sampson and Delilah! My mother named Delilah for that old Tom Jones song (she named me after Julie Andrews who was on the radio singing songs from 'Camelot' when she was pregnant with me!), so, what else could Sam be named?! (We learned to keep Mom away from the radio!) Seriously, this ringworm is a miserable thing; Chappy lost all the hair on his head overnight! Now, granted, he did have other patches on his body that were being treated, but he just went bald one night and it didn't look like the other pathches which were round, scaly, red, etc. His head was just bald as a baby's butt and not irritated at all. I was sure he had had a reaction to Orbax (he'd been on it for about 2 days) and rushed him into the vet, but they took a scraping and cultured it and it was ringworm......since they do go out, it's possible that they could have picked it up from the yard; it seems the horrid stuff can live/grow/thrive anywhere, and on anything! Since you're lucky, lucky, lucky enough to have a vet who will do housecalls, I'd ask him to try to culture it just to rule it out. I personally would not vaccinate Delilah. Julie