t looks like a small Thermos, but the partially 3D printed device invented by engineers at the University of Pennsylvania has a much more important function than keeping beverages warm or cold. The soda-can-sized device can detect the presence of the Zika virus, simply by testing a bit of a patient's saliva. For a disease that causes few distinguishable symptoms, a tool that can detect the virus quickly and easily is a critical development. Read more at 3DPrint.com: https://3dprint.com/140779/3d-printed-thermos-lid-zika/