New variant XBB.1.5 is ‘most transmissible’ yet, could fuel covid wave

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New variant XBB.1.5 is ‘most transmissible’ yet, could fuel covid wave
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XBB.1.5, pegged by the WHO as “the most transmissible” descendant yet of the omicron variant, rose from barely 2 percent of U.S. cases at the start of December to more than 27 percent the first week of January, according to new estimates by the CDC.

More than 70 percent of cases in the Northeast are believed to be XBB.1.5.

The omicron variant of covid-19 has spun off into dozens of immune-dodging subvariants. The Post's Frances Sellers explains the threat of these new strains. The nation is averaging nearly 48,000 people hospitalized with covid-19 over a seven-day period, the highest since late February but far below the 150,000 peak set about a year ago. The average daily count of hospitalized patients is up by about 20,000 since Thanksgiving.

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