https://www.cnn.com/2023/01/03/health/covid-variant-xbb-explainer/index.html
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1/3/23 at 11:37am
Organization
CNN
Author
Brenda Goodman
The CDC estimates that XBB.1.5 has more than doubled its share of the Covid-19 pie each week for the last four, rising from about 4% to 41% of new infections over the month of December.
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