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Icosahedral image Icosahedral Server: Developed by Dr.Chunxu Qu (former Research Associate in Johnson Lab)

In addition to illustrating how icosahedral quasi-equivalent surface lattices are formed, it has images of all of the icosahedrons that can be generated (from T=1 to T=100) along with paper templates which can be used to make your own models.   The theory of quasi-equivalence was posed by Caspar and Klug in 1962, and this allowed the first understanding of icosahedral virus structure.   Dr. Caspar's web page  talks more about quasiequivalence.
paper model image Watch this video to see how you can make a paper model of a Virus particle!
ICTV image The Universal Virus Database of International Committee on Taxonomy of Viruses (ICTV)
Virus World Virusworld by Jean-Yves Sgro, Institute for Molecular Virology, University of Wisconsin-Madis
EduVirus image Principles of Virus Architecture   by Dr. Linda Stannard, University of Cape Town. This is an excellent introduction to virus structure.
ICUR image IUCr   Crystallographic Education Online