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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

### A to Z list

### View 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 01-2026 | Title Introduction of seasonal risk for Tropical Viruses (PDF only, 776KB) | Update date 19 January 2026 | Guidelines affected Geographical index | Release number 54
Change notification number 36-2025 | Title Removal of malaria risk in East Timor and Suriname (PDF only, 228KB) | Update date 8 December 2025 | Guidelines affected Geographical index | Release number 53
Change notification number 37-2025 | Title VHF risk in Ethiopia (PDF only, 195KB) | Update date 8 December 2025 | Guidelines affected Geographical index | Release number 53
Change notification number 34-2025 | Title Dengue Virus risks in the GDRI (PDF only, 327KB) | Update date 6 December 2025 | Guidelines affected Geographical index | Release number 52
Change notification number 35-2025 | Title GDRI Preliminaries (PDF only, 382KB) | Update date 6 November 2025 | Guidelines affected Geographical index | Release number 52

View all updates to the GDRI

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