Share this on WhatsApp 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. Electron microscopy (EM) can reveal its general size and shape. We can see that the virions are spherical or ellipsoidal, with … Continue reading How I Built a 3-D Model of the Coronavirus for Scientific American