Alzheimer’s disease is composed of four distinct subtypes

Alzheimer’s disease is characterized by the abnormal accumulation and spread of the tau protein in the brain. An international study can now show how tau spreads according to four distinct patterns that lead to different symptoms with different prognoses of the affected individuals. The study was published in Nature Medicine.

More stringent public health measures associated with lower COVID-19 cases, deaths

As state and local policymakers and politicians made the decision to enact stay-at-home orders last March in response to the coronavirus pandemic, a recent study found that more stringent public health measures put in place directly correlated with lower virus case numbers during the first two months of the pandemic.