What makes the COVID-19 variant different, and dangerous
The CDC estimates the delta variant of the coronavirus that causes COVID-19 is responsible for more than 82 percent of cases in the U.S.
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A Department of Energy researcher at the Oak Ridge National Laboratory studies the coronavirus in this photo from June 2020. Since then, the COVID-19 virus has mutated into several variants and the latest, the delta variant, has been called the “fastest and fittest” for its high transmissibility rate. (Photo by Genevieve Martin/U.S. Department of Energy)
The CDC estimates the delta variant of the coronavirus that causes COVID-19 is responsible for more than 82 percent of cases in the U.S.