This depends on the virus type. Typical Virus will not transfer over network unless you have share drive and have full control on the shared .

kundan.ghimire · May 23, 2012 8:59 AM

 Thanks Kundan. My PC probably has a virus or two.  My Mac does not, I think.  Both are connected to the same router. Mac should be relatively immune by the virtue of its better built OS, though the attackes have recently with its rising popularity, I am concerned.  I do run clamx once in a while and so far the result is clean chit.  

Nepali_American · May 23, 2012 9:57 PM

Quick question: If a clean computer is connected to the same router as the computer that has virus, can the former be infected as well? Absolutely. Don't even need shared drive. Hideous trojans/malwares are constantly searching for open ports/backdoors and guess what ,unprotected network PC could get easily infected if one of your networked PC is infected. Be sure to have latest: Antivirus Antimalwares and FIREWALL(Very Important) Windows Virus probably won't do anything to MAC operating system.

bittertruth · May 23, 2012 11:19 PM

 thanks Bittertruth.

Nepali_American · May 24, 2012 8:56 AM

 If your pc is infected with worms, it can infect your mac too. if you have something critical in your mac, it is better to be safe than sorry.

default061 · May 24, 2012 7:21 PM

any worms/virus/malwares written specifically for PC can't infect Macs. But there are very few mutli-platform hybrid worms that can actually take down any system regardless of whatever OS it's running on. Like I said they're very rare to almost non-existence. Macs' days of invincibility to virus is ending sooner than you realize.

bittertruth · May 24, 2012 8:22 PM

lol

default061 · May 24, 2012 9:09 PM

bittertruth · May 24, 2012 10:11 PM