Is Alzheimer's Contagious?

Contributed by: Dennis Fortier, President, Medical Care Corporation

No. Alzheimer's disease is not contagious.I am posting this as a preemptive answer to forthcoming headlines that might suggest otherwise.

A study published in Nature Cell Biology showed that scientists were able to replicate the spread of Tau tangles in healthy mice by injecting them with brain tissue from mice known to have such a defect.

This research may shed helpful light on how tangles spread within the brain and improve our understanding of Alzheimer's disease pathology. It does not, as the authors clearly noted, suggest that Alzheimer's disease is contagious.


  1. And the earth is the center of the universe. You can not get mad cow disease from eating infected cattle. Don't think for yourself.

  2. Recent studies confirm what scientists have long suspected - AD is a prion disease the same as Creutzfeldt Jakob Disease (CJD) (mad cow)

    “Can Alzheimer’s be transmitted in humans through blood transfusion?

    Is Alzheimer’s Disease (AD) Contagious? Surprising Results

    Alzheimer's Disease (AD) and Creutzfeldt Jakob Disease (CJD) are the same prion disease:

    The fact that AD is an incurable, fatal, infectious prion disease which is transmissible in blood, makes the issue all the more grave because of the risk of iatrogenic transmission in medical settings (dentistry, opthamology, surgery, endoscopy, transfusions, etc.) Autoclaving does not totally inactivate prions on medical instruments. More drastic chemical and other attempts to sterilize can harm or destroy the instruments resulting in costly disposal.

    Prions have been found in blood, urine and feces of infected humans and animals'. JUST AS BSE (Mad cow Disease) is known to cause variant Creutzfeldt-Jakob Disease in humans – recent research indicates that Chronic Waste Disease (CWD) can jump species and cause fatal prion disease in people who eat deer and elk meat..

    With 5.3 million AD victims, it is time for public agencies such as the Centers for Disease Control & Prevention (CDC) to take action to protect public health. Notice is needed to the medical community of the iatrogenic AD prion risks.

    The US Environmental Protection Agency acknowledges there are infectious prions in sewage sludge:

    An immediate halt must be instituted by US EPA of the landspreading of prion infected sewage sludge "biosolids" - particularly Class A sludge "compost' which is advertised by the US EPA and waste industry as "pathogen free" and promoted for use on home vegetable gardens and public parks and ballfields where children play.

    Helane Shields, PO box 1133, Alton, NH 03809

  3. wow this is cool but sad

  4. hehehehehehehehhehehe

  5. I forgot what I was going to say