A new strain of COVID-19 prevalent in China has been identified in multiple areas in the United States. The new strain—known as COVID-19 NB 1.8.1—was first detected in China in January this year, and ...
A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now the dominant strain circulating in the United States. The mutated omicron subvariant, which is known for causing a ...
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