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Make a 3D model of your face with a selfie and AI Or upload a picture of someone else's face, the possibilities are limitless. Swapna Krishna Contributing Writer Updated Tue, September 19, 2017 at ...

What does SARS-CoV-2, the virus that causes COVID-19, look like? This simple question does not have a simple answer. SARS-CoV-2 is very small, and seeing it requires specialized scientific techniques.