US federal health authorities are gearing up for a widely-expected resurgence of coronavirus during winters. The BQ.1 variant of Covid-19 has already outpaced many rival strains in European nations from England to Germany, where the Covid wave has resurged.
Previously, the CDC bundled BQ.1 and BQ.1.1 with their shared parent BA.5. The two sub-variants make up an estimated 5.7% of infection in the US.
The remainder of BA.5 which had dominated a wave of cases over the summer, has shrunk to 67.9% of circulating variants. CDC spokesperson said BQ.1 and BQ.1.1.
are the fast-growing subset of the Omicron variant in the US at present. It appears that the two sub-variants might overtake other Covid strains such as BA.4.6.
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