Swift, accurate HIV test via USB stick

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Traditional HIV testing methods take up to three days with blood samples often needing to be sent away to a laboratory. Researchers from Imperial College London and DNA Electronics developed a USB stick that requires only a single drop of blood to run the test. Using a mobile phone chip, the USB stick checks for a change in the level of acidity present. If the change occurs, it indicates the presence of the virus and creates an electrical signal that can be read on a connected device. In tests, the USB stick results were 95 percent accurate, and the average…

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