"Our DELTA surge is ongoing and, in fact, accelerating. And on top of that, we're going to add an OMICRON surge," said Dr. Jacob Lemieux, who monitors variants for a research collaboration led by Harvard Medical School
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Most likely, he and other experts said at a press briefing Tuesday, an omicron surge is already under way in the United States, with the latest mutant coronavirus outpacing the nation's ability to track it