Kaspersky Labs has published its latest list of the Top 20 viruses but there are only two worth bothering about. Klez is the runaway leader at 84.28% with I-Worm.Lentin a distant second at 9.24%. Nothing else has more than 1%. Symantec and McAfee agree that Klez is rampant, according to this PC World report. It's not a happy story because it means there are vast numbers of people who can't be bothered to download the patch that appeared in March 2001 and/or haven't quite twigged that it is not a good idea to run suspicious-looking unsolicited attachments.