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Ongoing brain injury caused by COVID-19 may not always be detected by routine tests

A new study published recently in Nature Communications details that markers of brain injury are present in the blood many months after COVID-19 infection, despite inflammation blood tests being normal.

The COVID-CNS study analysed samples from over 800 patients hospitalised with COVID-19 from across England and Wales, half of whom with new neurological conditions. Here researchers measured brain injury markers, serum inflammatory proteins (cytokines), antibodies, and brain (neuroglial) injury proteins.