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# Geographical Disease Risk Index

The Geographical Disease Risk Index (GDRI) forms a constituent part of chapter 3, chapter 20 and chapter 22 of the Guidelines for the Blood Transfusion and Tissue Transplantation Services in the UK.

It is for the assessment of travel-related risks for the donation of blood, tissues and cells, and is for healthcare professionals trained in its use.

## View the guidelines

### Search

Find entries by searching

### A to Z

See the full list of entries

### Updates

View all GDRI updates

## Additional resources

### Using these guidelines

Learn how to use and apply the GDRI

### Source files

Download an offline copy of the GDRI

### Cross-references

View relevant entries across the donor selection guidelines

## Latest updates

Change number | Title | Updated | Guidelines affected | Release
--- | --- | --- | --- | ---
Change notification number 08-2026 | Title VHF risk in Ethiopia (PDF only, 194KB) | Update date 23 March 2026 | Guidelines affected Geographical index | Release number 55
Change notification number 02-2026 | Title Removal of vCJD risk from blood component labels (PDF only, 183KB) | Update date 17 February 2026 | Guidelines affected Red book | Release number None
Change notification number 03-2026 | Title Red Book Chapter 23 (PDF only, 869KB) | Update date 17 February 2026 | Guidelines affected Red book | Release number None
Change notification number 04-2026 | Title Red Book Chapter 3.4 (PDF only, 315KB) | Update date 17 February 2026 | Guidelines affected Red book | Release number None
Change notification number 05-2026 | Title Bleeding Disorder (PDF only, 283KB) | Update date 17 February 2026 | Guidelines affected Whole blood | Release number 79

View all updates to the GDRI

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