Question about ringworm, cats, and babies?

My husband just found out that he has ringworm. We have two cats and I'm due to give birth in a week. Any suggestions as to what we should do first? I'll send my husband to the doctor on Monday, but what should I do about the cats? Should I take them to the vet to be checked out right away? Can the vet give them anything to prevent them from getting it if they don't have it already? We will be staying at a relatives house for the first two weeks, so the baby won't be around them for awhile, but I don't know. Anyone know how susceptible the baby will be to ringworm? Should my husband be worried about handling him? And BTW, does anyone know if vets take payment plans? This wasn't an expense we were expecting right now. Any suggestions would be helpful, thanks.