The Northeast has been hit hardest so far - with more than 90% of new infections caused by BA.2 last week compared with 86% nationally. “We could have a substantial surge here,” he said.īoth experts said BA.2 will move through the country gradually. could wind up looking like Europe, where the BA.2 surge was “substantial" in some places that had comparable levels of immunity. from vaccination or past infection compared with early winter.īut Ray said the U.S. Keeping the surge somewhat in check, experts said, is a higher level of immunity in the U.S. as it did in Israel, where it created a “bump" in the chart measuring cases, he said. BA.2 may well have the same effect in the U.S. Eric Topol, head of Scripps Research Translational Institute, said the numbers will likely keep growing until the surge reaches about a quarter the height of the last “monstrous” one.
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