Scientific finding on Alzheimer's: they discover cases in which it was transmitted accidentally. There are 5 patients from the United Kingdom who more than 40 years ago received treatment with a growth hormone that is now obsolete.
They clarify that there are no risks of person-to-person transmission. The hormone was contaminated with the protein beta amyloid, which when accumulated, is responsible for Alzheimer's. The protein, which was transmitted during the procedure, spread decades later, forming tangles that triggered the neurodegenerative disease.