This HIV Test Fits on a USB Drive

A new HIV test is as simple as plugging a USB drive into a computer. Scientists from London's Imperial College and a private genomics analysis company created a device that uses pH to test for the HIV-1 virus and communicates the results to a USB stick. The test requires only a drop of blood and the researchers say that it is simple and cost-effective to manufacture, offering a low-cost option for the millions of HIV-positive individuals who must monitor the effectiveness of their treatme