Why Are Viral Capsids Icosahedral?
Viral capsid structure is a geometric packing problem under genetic constraints.
asimov.press/p/viral-capsids

Virus symmetry and T number
Caspar-Klug Theory
viralzone.expasy.org/8577

Structural puzzles in virology solved with an overarching icosahedral design principle
nature.com/articles/s41467-019

Capsid
en.wikipedia.org/wiki/Capsid

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