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Good news for long COVID sufferers: about half experience meaningful symptom reduction within 36 months of their first SARS-CoV-2 infection, according to a new study in the Annals of Internal Medicine. Researchers tracked over 1,000 patients across 83 US sites, finding gradual but real improvement over time. Even those still symptomatic at 18–24 months showed similar rates of eventual recovery.
There's a light at the end of the tunnel for many long COVID patients. A large prospective study published in the Annals of Internal Medicine found that roughly half of people with likely long COVID (LC) after their first SARS-CoV-2 infection experience a meaningful reduction in symptoms by the three-year mark. The study, led by Harvard's Dr. Harrison T. Reeder, tracked 1,019 individuals across 83 US sites, measuring outcomes using the LC Research Index (LCRI).
Encouragingly, improvement wasn't limited to those who recovered early — patients still reporting likely LC at 18 and 24 months showed similar trajectories of eventual symptom relief, suggesting recovery can happen even after prolonged illness.
By the Numbers:
Why it matters: These findings offer hope to patients and clinicians navigating long COVID's uncertain course. They also provide a critical baseline for designing future clinical trials aimed at accelerating or improving recovery from this still-poorly-understood condition.
