As COVID-19 is proving to the world, tiny viruses are powerful biological agents, capable of rapidly effecting massive damage and fatality. And yet, they’re so simple: a virus is merely comprised of pieces of genetic material—either RNA or DNA—wrapped in a protein envelope, which is known as a “capsid.” Yet this tiny organism carries with it a mortality rate (death rate) or about 10% for people over 70 years of age and 22% for those over 80.
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