The twinkling of lit-up trees and festive displays in store windows have come to mean two things: The holidays are upon us, and so is COVID. Since the pandemic began, the week between Christmas and New Year's has coincided with the dreaded 'winter wave.' During that dark period, cases have reliably surged after rising throughout the fall. The holiday season in 2020 and 2021 marked the two biggest COVID peaks to date, with major spikes in infections that also led to hospitalizations and deaths. But something weird is happening this year. From September through November, levels of the virus in wastewater, one of the most reliable metrics now that cases are no longer tracked, were unusually low. At various points over that span, hospitalizations and deaths also neared all-time lows. That's not to say we are in for a COVID-less Christmas. CDC data released over the past two weeks show a sharp increase of viral activity in wastewater. Whether this is the start of a winter wave still...
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