Researchers create smartphone-based device that reads medical diagnostic tests quickly and accurately

Enzyme-linked immunosorbant assay, or ELISA, is a diagnostic tool that identifies antigens such as viruses and bacteria in blood samples. ELISA can detect a number of diseases, including HIV, West Nile virus and hepatitis B, and it is widely used in hospitals. It can also be used to identify potential allergens in food, among other applications.

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