The virus is also shaded with procedural materials to allow infinite resolution no matter how close up you zoom into the model. It uses subsurface scattering to achieve an organic look.
The model was built using quads, with efficiency in mind during the modeling process. It is designed to have the maximum detail with the least amount of polys needed to keep that shape. This is especially important to keep in mind if your are adding this model to a large scene with lots of objects. Using this model over others may help maintain system performance.
Using this model can help created realistic and high definition renderings to convey research or information to a 3rd party for informative or promotional means.