How does persistent SARS-CoV-2 in the colon mechanistically drive neurodegeneration and immune dysregulation?

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Description

The study identifies viral persistence in colon tissue alongside systemic immune dysfunction and neurodegeneration markers, but the mechanistic link between gut viral reservoirs and neurological sequelae remains unexplained. Understanding this gut-brain axis connection is crucial for PASC therapeutic strategies.

Gap type: unexplained_observation Source paper: SARS-CoV-2 post-acute sequelae linked to inflammation via extracellular vesicles. (2025, Frontiers in immunology, PMID:40330474)

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