Study shows past COVID-19 infection doesn’t fully protect young people against reinfection

Although antibodies induced by SARS-CoV-2 infection are largely protective, they do not completely protect against reinfection in young people, as evidenced through a longitudinal, prospective study of more than 3,000 young, healthy members of the US Marines Corps conducted by researchers at the Icahn School of Medicine at Mount Sinai and the Naval Medical Research…

How tangled proteins kill brain cells, promote Alzheimer’s, CTE

Look deep inside the brain of someone with Alzheimer’s disease, most forms of dementia or the concussion-related syndrome known as chronic traumatic encephalopathy (CTE) and you’ll find a common suspected culprit: stringy, hairball-like tangles of a protein called tau. Such conditions, collectively known as “tauopathies” strike scores of people across the globe, with Alzheimer’s alone…