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Evening Standard
Evening Standard
Health
Nuray Bulbul

What is the new quick-spreading Covid variant NB.1.8.1?

Covid-19 CDC United States WHO China
(Danny Lawson/PA) - (PA Wire)

The U.S. Centers for Disease Control and Prevention (CDC) has revealed that there has been an increase in people infected with a new strain of Covid-19, known as NB.1.8.1.

According to the health body, 37% of Covid-19 cases recorded in the first few weeks of June 2025 in the US came from the strain - a 15% increase from the two weeks before.

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