# Can Alzheimer's Spread Through Blood Transfusions? Here's What We Know.

> **Open Intelligence Dossier** · First detected: 2026-08-25 06:07 UTC · Category: Health

## Executive Summary
Recent research and a UCL review are prompting medical experts to investigate whether Alzheimer's-linked proteins can be transmitted via blood transfusions.

## Intelligence Brief
Medical researchers are currently investigating whether amyloid beta, a protein linked to Alzheimer's disease, can be spread through the process of blood transfusions. This inquiry follows the publication of a review by University College London (UCL), which has sparked calls for a more thorough probe into how these specific proteins are transmitted. The central concern is whether the presence of these proteins in donor blood could potentially impact the recipient's health, leading to a wider discussion about the safety protocols governing blood donations and the biological behavior of amyloid beta during medical procedures. Coverage of this development is appearing across several scientific and medical platforms, including ScienceAlert and MedPage Today, both of which are examining what is currently known about the potential for amyloid spread. Medical Xpress and Bioengineer.org have focused their reporting on the practical application of this research, specifically questioning whether the implementation of screening for proteins linked to both Alzheimer's disease and strokes could make the transfusion process safer for patients.


These outlets emphasize the necessity of testing for these biomarkers to mitigate potential risks associated with the transfer of pathological proteins. To understand why this is surfacing now, it is necessary to recognize that amyloid beta is a primary marker associated with the progression of Alzheimer's. The UCL review serves as the catalyst for this current trend, shifting the conversation toward the possibility of protein-based transmission. While the research is characterized as early, it introduces the possibility that proteins associated with neurodegenerative conditions and strokes could be present in the blood supply. This raises critical questions about the long-term safety of blood products and the ability of current screening methods to detect non-infectious but harmful proteins.


Moving forward, the focus will remain on whether medical facilities will adopt the screening processes suggested by the reporting in Bioengineer.org and Medical Xpress. Observers are watching to see if the call for a probe into amyloid beta transmission, as highlighted by Chosunbiz, leads to formal changes in transfusion protocols. Coverage does not yet specify if any such screenings are currently in place, meaning future developments will likely center on the transition from the early research phase to the implementation of protein-linked testing for stroke and Alzheimer's markers.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| GIGAZINE | Is there a risk of Alzheimer's disease being 'contagious' through blood transfusions? | [Source Link](https://news.google.com/rss/articles/CBMikAFBVV95cUxQVU5UTW8tMFdfT1Z6RE5GTmwwZnUwZGViaXZCSERVbGlhaUh1dHh1NTJ1RGtveUxjb3NKaDMxSWNlX0l0aVZrVlhtcnBTdmRiY3lNQjd6YXhKYy1HcXpILXhmb1d4UVM2YThLMTdaclg5OVNCeXhzRU5aS2QwWUxOVlF0c21vdjVyU2E1WFNMeGw?oc=5) |
| Bioengineer.org | Could screening proteins linked to stroke and Alzheimer’s make transfusions safer? | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxQaGotUlktU1hpV3ROalJYcFFpaEF6T01mZlk4RnVJYmpBRTQtbFRNcFVGTmRTZFVMckdodE8xNi1ReWdsaFktdFlpNHJONW5FUHVPRDhENXFLY0R2bFlMZENvWUNkNkdFeWNpRnJCbTVVODV6dGdmRGEybGNhMjRTOVFCRlZ4S2tlYldNUDVTZXZGZWVxSVpIZmhKaVNnS2tiX1cxS0E0SHE?oc=5) |
| Medical Xpress | Can we make blood transfusions safer by testing for proteins linked to strokes and Alzheimer's disease? | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxPdWFQZmJlX2EycjJHM0MtSmp1cF9jd0w4RWpHT09UMWRJS0ZVVnUyNG82bklacTN0dWFoYllneHZzZ2xXN0FmVVQ5LUNERlEtWEZXSVlJZ0hxZXVDMnJoaGRQanBWSk5rWm42X2xBUW1KQWRSaEROcXRDeDdGbm5fRW9vdVI1NHhKLVg3Rw?oc=5) |
| MedPage Today | Can Amyloid Spread by Blood Transfusions? Early Research Prompts Closer Look. | [Source Link](https://news.google.com/rss/articles/CBMib0FVX3lxTE5QQjNXN1VyblNIbWk2NUtRSTRWVjFvempHVXJIUW55SUdSa2JJbllIN0FVS2d6ZHBaNmVLRHRlTDVRX015LTlmNXJpT3pScGtoMEVGSGhoU0VRd0E2aFNINGJtMmY1cEFQbC1VV2FEUQ?oc=5) |
| Chosunbiz | UCL review sparks call to probe amyloid beta transmission via transfusion - CHOSUNBIZ | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxNV0l5Z0RvZjV5VWR5WlZCOXBBeWpBVzlXMFYwZVZzcUZfSV94LTJwTVNiYUE2VUVWNG5Hc0gtS01YSHhXRXNINE1SaE9EejNCODlnR1laZWtpZ3IzY1FLNFp4V05ydnhzMHdKTjJjUi1DXzhvLUtrNENGQm0taDRPN9IBlAFBVV95cUxNSUhnenRrQ3AyV19OX2JfeVNaZm1BbTJOWmtPTGJNVW9nUmdWTXhQamM1UUpncnBvSVlaWHRlWmNva25yR1RNTzdUMGVpMTB3MS1OaW1vNXlOZ1ZwT29JT2lmQllpUFFRZ0hBb2Z2MFNudG83RjI5V0xOdHktMm5zZ0lrcmtmMDNUZThXWkpBNnFzS3lx?oc=5) |
| ScienceAlert | Can Alzheimer's Spread Through Blood Transfusions? Here's What We Know. | [Source Link](https://news.google.com/rss/articles/CBMinAFBVV95cUxQWDBZb0s3RUtRVjFWZUtzOUI3ME1lWE1POG5ZU2pRel9fWFBJdktQcWRhNjBWZTZvU285UlQzeVdrd0JwZUZXc0xLUXVhODlKcHpnY01vMjByaFZSOHJRblhRV0tza3JHLUJBN3pMLTlXQnFjckRfTWZodXlJWkpUTzdEa1ZUWUVqeUp0elNrM0huOURpRlNGSmVKQXM?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-08-25/can-alzheimer-s-spread-through-blood-transfusions-here-s-what-we-know*