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 ...
The Centers for Disease Control and Prevention's airport screening program has detected multiple cases of the new COVID-19 variant NB.1.8.1, which has been linked to a large surge of the virus in ...
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