CDC tracks new COVID-19 variant XBB
The CDC is keeping an eye on a new COVID-19 variant known as XBB
that represents more than 5% of COVID-19 cases in the Northeast and 3.1% of new
cases across the US, based on the agency's preliminary estimates. The new
subvariant may have emerged from the Omicron subvariants BA.2.10.1 and BA.2.75,
and tracking of XBB has been prioritized "because it had quite a number of
substitutions different from the currently circulating viruses in the
[receptor-binding domain], which meant that it might be an escape variant,"
said Derek Smith, director of the Center for Pathogen Evolution at the
University of Cambridge.
Full Story: HealthDay
News (11/28),
CBS News (11/25)
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