Cornell Researchers Develop Portable Diagnostic Test for Ebola and Lassa Viruses
Cornell researchers have developed a portable diagnostic test capable of simultaneously detecting and distinguishing between Ebola and Lassa viruses. These two serious viruses share similar early symptoms, such as fever, headache, vomiting, and general weakness, but require distinct medical responses. The new test utilizes a test strip that identifies proteins produced by the viruses from a single pinprick blood sample. This strip is then analyzed by a Portable Rapid Onsite Versatile Image-based Detection System (PROVIDS), which uses a camera to photograph the strip and, within five seconds, provides an objective, quantitative result through automated software analysis. This innovation aims to move diagnostic capabilities from centralized laboratories to portable devices usable by health workers in the field, particularly in areas with limited infrastructure, unreliable electricity, and minimal refrigeration.
