California is among the states with the highest number of COVID-19 variant cases, according to the federal Centers for Disease Control and Prevention.
Florida and Michigan were also high on the CDC's list of Emerging Variant Cases in the U.S. There have been almost 1,400 variant cases among the three states alone.
Dr. Robert Wachter, chair of the Department of Medicine at UC San Francisco, sexplained the difference in variants.
"You can divide the variants into two main buckets. One is they appear to be more infectious, and the prototype there is the United Kingdom, and then the second type are ones where they may not be particularly more infectious, but they seem to be somewhat resistant to immunity. Generally (that's) the South African and the Brazilian variant."
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