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Main content

Viruses

Viruses

Learn

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Intro to viruses

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Animal & human viruses

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Evolution of viruses

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The biology of Zika virus

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About this unit

Viruses: Are they alive? Are they dead? Are they...undead? Learn more about these fascinating (and clinically important) particles that occupy a "gray area" between living and non-living things.

Biology is brought to you with support from the

Amgen Foundation

Amgen Foundation