New subvariant JN.1, estimated at 62% of U.S. cases, helps fuel latest winter surge
If you are stuck at home with Covid-19 after the holidays, you are not alone.
Covid is surging again, four years after the pandemic began, as a new virus subvariant becomes dominant in the U.S. and as people gather indoors to escape cold weather.
Rising wastewater virus levels and hospitalizations underscore the latest winter Covid surge. One driver is JN.1, the latest offshoot of the virus to take over in the U.S. and an Omicron subvariant. The Centers for Disease Control and Prevention on Friday estimated that JN.1 represents roughly 62% of cases nationwide.
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