Please read the article.
Macs ARE affected: “The report also found that 2.7% of Macs were infected with Mac OS malware”
No, Psycho... the Sophos AV TURNS OFF the built in protection that Apple provides so that it can see what the System prevents from being downloaded... Guaranteed way for it to find Mac Trojans. And "present" is not the same as "infected"; many of the listed trojans were merely present in un-run files in email. Email on a Mac does not execute automatically.