Google Glass, the tech giant’s experimental eyewear-based computer, may soon give epidemiologists a faster and more reliable way to track infections and other diseases. Researchers report online today in ACS Nano that they’ve created an app that allows Google Glass wearers to snap pictures of common immunology-based diagnostic tests  and immediately beam those images back to a central computer server. Software on the server then processes the image information, determines a diagnosis, and relays the information back to the wearer. Because the Google Glass transmits location information, the approach can also be used to map the spread of diseases that are being tested. The researchers showed that the latest approach to epidemiology worked to track both HIV infections and levels of prostate-specific antigen, a molecular marker associated with prostate cancer.