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Pathophysiology and mechanism of long COVID: a comprehensive review.

Diego Castanares-ZapateroP ChalonL KohnM DauvrinJ DetollenaereC Maertens de NoordhoutC Primus-de JongI CleemputK Van den Heede
Published in: Annals of medicine (2022)
Evidence on why persistent symptoms occur is still limited, and available studies are heterogeneous. Apart from long-term organ damage, many hints suggest that specific mechanisms following acute illness could be involved in long COVID symptoms. KEY MESSAGESLong-COVID is a multisystem disease that develops regardless of the initial disease severity. Its clinical spectrum comprises a wide range of symptoms.The mechanisms underlying its pathophysiology are still unclear. Although organ damage from the acute infection phase likely accounts for symptoms, specific long-lasting inflammatory mechanisms have been proposed, as well.Existing studies involving Long-COVID patients are highly heterogeneous, as they include patients with various COVID-19 severity levels and different time frame analysis, as well.
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