This winter's Covid wave in the U.S. has proven to be significantly milder than in previous years, with lower levels of the virus detected in wastewater data. Hospitalization rates have dropped to about half of last year's and weekly deaths were under 600, a stark contrast to around 2,000 last winter. Factors contributing to this trend include sustained population immunity from preceding surges and a well-matched vaccine for current variants. Experts see this as a welcome reprieve amidst the pandemic's ongoing challenges.
One possible reason for the lull is that the population is still carrying some immunity from a large, later-than-usual summer surge.
The Covid hospitalization rate stayed around half of what it was last year, and deaths fell too, indicating a significant lull in the virus's five-year assault.
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