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3D print of a SARS-CoV-2—also known as 2019-nCoV, the virus that causes COVID-19—virus particle. The virus surface (blue) is covered with spike proteins (red) that enable the virus to enter and infect human cells. The spikes on the surface of coronaviruses give this virus family its name – corona, which is Latin for “crown,” and most any coronavirus will have a crown-like appearance. For more information, visit the NIH 3D Print Exchange at 3dprint.nih.gov.