By Vijay Kumar Malesu Reviewed by Lauren Hardaker Nov 28 2025 A national RECOVER cohort reveals why Long COVID doesn’t follow a single recovery pattern. Instead, it shows who stays sick, who improves, and who unexpectedly worsens as symptoms evolve long after infection. Study: Long COVID trajectories in the prospectively followed RECOVER-Adult US cohor t. Image credit: Pixel-Shot/Shutterstock.com In a recent study published in Nature Communications , a group of researchers defined and compared

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