Ah. The Mac Observer actually moved on from the “Macs don’t get infected by computer viruses” and tried to figure out how many viruses actually exist for Macs. Out of 71000 known viruses, there are 553 Microsoft Word Macro viruses which could affect Mac users using Word, there are 26 that can hit Mac Classic operating systems, and there are zero known viruses that target OS X.
We’re like Superman. Impervious. Ha.