Delta variant makes up more than half of all cases in US, CDC data shows

According to CDC data, the Delta variant now accounts for more than 51% of new COVID-19 cases in the U.S.

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  • Health experts have been predicting that the Delta variant would soon become the dominant coronavirus strain in the U.S. - and that day has arrived than expected.
  • That's quite a change from just one month ago, when Delta accounted for just 3% of U.S. cases.
  • The highest infection rate is in the Midwest region of Iowa, Kansas, Missouri, and Nebraska - where Delta accounts for a whopping 80.7% of cases.
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