British scientists are developing a single test that could spot more than 600 deadly viruses, including bird flu, rabies and foot and mouth disease, within hours, the government announced. It is hoped the so-called “Lab on a Chip” — laboratory on a microchip — will be able to detect diseases in up to 36 hours, much faster than current methods of confirming viruses, which can take as long as seven to 10 days. Full Story