Many patients report symptoms of "brain fog" and confusion as a result of COVID-19 infection. Researchers report inflammatory molecules in the cerebral spinal fluid could be the cause of brain fog associated with coronavirus. Anti-inflammatory drugs, such as steriods, could help alleviate the symptoms of COVID brain.
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IFITM3, a protein that plays a role in the immune response to pathogens, also plays a key role in the accumulation of amyloid-beta plaques. As IFITM3 directly affects plaque formation, researchers suggest both viral and bacterial infections could increase the risk of Alzheimer's development.