Haha. Wrong my friend. In the early stages of Apple's lifespan. They did say, Macs have no virus. Virus being the general virus, that affects most windows computers.Very wrong thinking. Not even Apple dares to make such a claim.
Last year, Apple even recommended its users to get anti-virus software just to be on the safe side, or at least increase one more barrier against potential attacks launch by virus programmers.
I did not rule out that there are no viruses for Macs. There are. But they aren't that good and don't cause major damage at all.
GMAN