New COVID variant NB.1.8.1 could be more than 1 in 3 cases, CDC projects

The COVID-19 variant NB.1.8.1, linked to a surge in hospitalizations in Asia, is projected to account for over one-third of U.S. cases, signaling its high transmissibility. While it does not appear to cause more severe illness than earlier variants, updated vaccine access may be limited for many Americans, particularly children and those without underlying health conditions.

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