Understanding the Evolution of COVID-19 and its Variants

The coronavirus has come a long way since 2020. While the days of sanitizing Amazon packages and standing six feet apart may feel like they’re behind us (and they very well may be), the SARS-Co-V-2 virus (which causes COVID-19 ), continues to evolve. With Alpha, Delta, Omicron, and more iterations, it’s normal to wonder how many COVID variants are there? Ahead, experts explain the evolution of COVID-19 , and the latest variants of concern. Meet the experts: Linda Yancey, M.D.

, an infectious diseases specialist at Memorial Hermann Hospital; and Peter Kasson, M.D., Ph.D., B.S., of University of Virginia’s departments of Molecular Physiology and Biomedical Engineering.What is a COVID variant?A variant is just a slightly changed virus, Linda Yancey, M.D., an infectious diseases specialist at Memorial Hermann Hospital says. “Viruses go through generations just like people do. And like people, each virus generation is a little different from the one that came before,” she say

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