COVID-19 cases back on the rise in US after new subvariants appear | USA TODAY



COVID-19 infections have spiked over the past month due to new and more infectious subvariants, waning vaccine protection and fewer people wearing masks.

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About a third of Americans now live in an area with medium or high COVID-19 rates, with reported cases up 26% from last week, said Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention.

Areas of increased infection and hospitalization include the Northeast and the eastern corridor, as well as parts of the upper Midwest.

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