Well,we all use our USB flash to run our portable apps on schools,work or somewhere else.It's cool to be able to use apps anywhere without installing them.But frankly many of us enjoy it until some virus attacks our USB.It's a great frustration.Our apps become lousy,our daily work gets buggy.So what should be done to prevent our USB from these viruses.(Although full control is impossible.)Let's share experiences,guys.
The best way I can suggest is to utilize a PortableApps.com Carbide: it has built-in real-time virus scanning that is specific to that drive.