Jackson et al. (2026)
- Authors: Melinda L. Jackson, Matthew D. Weaver, Prerna Varma, Mark É. Czeisler, Lauren A. Booker, Christine F. McDonald, Rebecca Robbins, Anna Ridgers, Rashon Lane, Shantha M.W. Rajaratnam, Charles A. Czeisler, Stuart F. Quan
- Institutes: Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia, Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA, USA, Harvard Medical School, Boston, MA, USA
- Publisher: The Lancet Regional Health – Americas
- Link: DOI
Summary
This study maps the long-term trajectory of Postacute Sequelae of SARS-CoV-2 (PASC) in a large American population, highlighting that symptoms like fatigue and cognitive impairment are not only common but can persist or even worsen over a 12-month period. It confirms that the burden of Long COVID extends far beyond the initial respiratory phase, significantly impacting sleep health and daily functioning. The findings emphasize the protective role of vaccines and early antiviral 💊 interventions in reducing the long-term symptom load.
What was researched?
The study examined the types of symptoms reported by patients following a SARS-CoV-2 infection and how these symptoms changed or persisted over a period of up to one year.
Why was it researched?
While the acute phase of COVID-19 is well-documented, the long-term evolution of PASC and the factors that influence its severity in the general population required deeper investigation to improve clinical management.
How was it researched?
Researchers utilized data from the COPE Initiative, a national longitudinal survey of over 11,000 U.S. adults, comparing infected individuals with and without PASC to uninfected controls over a 12-month follow-up period.
What has been found?
Patients with PASC experienced a wide variety of symptoms, most notably fatigue, brain fog, and shortness of breath, which led to a progressive decline in overall health and sleep quality. The study found that while some individuals recovered, a significant proportion reported persistent or fluctuating symptoms even a year after the initial infection.
Discussion
The research highlights the heterogeneity of Long COVID, noting that symptom clusters often overlap between neurological and physical domains. It also points out that pre-existing health conditions and the lack of booster vaccinations are associated with a higher risk of prolonged recovery.
Conclusion & Future Work
PASC is a chronic condition with a substantial temporal burden that requires multidisciplinary care. Future research should focus on the biological mechanisms that cause symptoms to persist for such extended durations.