What scientists have found so far is concerning. For example, PET scans taken before and after a person develops COVID-19 suggest that the infection can cause changes that overlap those seen in Alzheimer’s. And genetic studies are finding that some of the same genes that increase a person’s risk for getting severe COVID-19 also increase the risk of developing Alzheimer’s. Alzheimer’s diagnoses also appear to be more common in patients in their 60s and 70s who’ve had severe COVID-19.
