Cross contamination is difficult to control using a conventional mouse.

Topo Jojo The Touchless Mouse helps prevent contamination in patient care environments. Because it's touchless it means:

No Contact
No Bacterial Contamination.

Just place your finger, a pen, or a pencil into the sensor grid to control the PC’s cursor. The Touchless Mouse will operate any Windows XP, Vista or Windows 7 system.

Other mice designed for medical applications are not immune from contamination unless rigorous, expensive sanitization schedules are diligentely followed. Topo Jojo The Touchless Mouse uses patented infrared sensor technology that eliminates sanitization requirements completely.