Related Experiment Video
Updated: Apr 8, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
Published on: May 1, 2018
Tracing the gaps: A global snapshot
Vera Rosa1, Paul Ashford2, Gopal Patidar3
1Serious Hazards of Transfusion (SHOT), Manchester Blood Centre, Manchester, UK.
Background And Objectives:
Traceability of blood components ensures patient safety, allowing bidirectional tracing of donors and recipients. Records must be kept for defined intervals and stored safely to ensure data integrity. Compliance must be regularly assessed, with clear accountability and actions for deficiencies. All transfusion staff must be trained in traceability to promote safe practices. The global survey aimed to identify the current status of blood components traceability.
Materials And Methods:
International Society of Blood Transfusion (ISBT) Working Party on Haemovigilance in collaboration with International Haemovigilance Network (IHN) and Serious Hazards of Transfusion (SHOT) conducted a global survey in traceability, built using Online Surveys by Jisc and distributed to the six World Health Organization (WHO) regions. Responses were analysed using Microsoft Excel.
Results:
There were 212 responses from 43 countries. In 201/212 (95%), a law or regulation for traceability was reported, and in 189/201 (94%) traceability was bidirectional. Retention periods for records were variable, with ≥30 years being the most common (117/195; 60%). The Ministry of Health (118/212; 56%) and/or regulatory bodies (189/212; 89%) were most often the responsible organizations for monitoring traceability. Training in traceability for transfusion staff was reported in 139/212 (66%). In 32/212 (17%), there was at least one recall where a donor or recipient could not be traced. Records stored in computers (28/212; 13%), hard copies (22/212; 10%) or both (132/212; 62%) were reported. Of those with legacy systems (84/160; 53%), 18 stated that these were not safely managed. A haemovigilance system or equivalent was reported in 171/212 (81%) responses. The main challenges identified were unavailability of information technology (139/212; 66%) and staffing issues (137/212; 65%).
Conclusion:
This survey highlights wide global variation of traceability practices and highlights critical risks requiring urgent action.
Related Concept Videos
Leaky Scanning
Types of Global Positioning System Surveys
Time-Series Graph
Distance Measurements by Taping
Gene Duplication and Divergence
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
Methods of Obtaining Topography

