"Some reading to do here," says John Carter, "but not a lot, so if you are wondering about viruses and the Mac, then perhaps you should get a warm cup of something and some goodies and curl up with your MacBook and read this."
http://www.roughlydrafted.com/2009/01/29/the-mac-malware-myth/#more-3073
Well, John, it is 22 pages long, but we do like to keep informed. Thanks for the info.