
This study investigates the unclear pathogenesis of neurological sequelae in post-COVID-19 patients using multidimensional spatial immune phenotyping and machine learning on brain samples. Compared to healthy controls, post-COVID-19 brains showed a high percentage of specific microglial cells forming cellular nodules. Unlike acute COVID-19 cases, these patients had fewer CD8+ parenchymal T cells, indicating a shift towards innate immune activation. This immune shift may contribute to neurological alterations observed in post-COVID-19 patients.
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