UPI: Patients with brain fog after COVID-19 have abnormalities in cerebrospinal fluid

UPI: Patients with brain fog after COVID-19 have abnormalities in cerebrospinal fluid. “Brain fog. It has become an inexplicable side effect of COVID-19 infection, but researchers now report they have discovered a possible reason why it happens. In a small study, investigators found abnormalities in the cerebrospinal fluid of some COVID-19 patients who developed thinking problems.”

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