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How does the coronavirus work?

What it is, where it comes from, how it hurts us, and how we fight it.
by Neel V. Patel

What is it?

A SARS-CoV-2 virion (a single virus particle) is about 80 nanometers in diameter. The pathogen is a member of the coronavirus family, which includes the viruses responsible for SARS and MERS infections. Each virion is a sphere of protein protecting a ball of RNA, the virus’s genetic code.

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