4.2 Article

Monitoring viral genomic sequences in transfusion-transmitted viruses

Journal

VOX SANGUINIS
Volume 118, Issue 7, Pages 551-558

Publisher

WILEY
DOI: 10.1111/vox.13444

Keywords

diversity; public health; sequencing; transfusion safety; virus

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The study aimed to determine the value that blood operators globally place on viral diversity surveillance and assess its impact. A questionnaire was circulated to members of the International Society of Blood Transfusion-transmitted infectious diseases working party. The results showed that 97% of respondents viewed monitoring viral genomic sequences as important, but only 47% were currently doing it. Lack of financial resources and expertise were reported as the main limitations.
Background and Objectives: Monitoring genomic sequences of blood-borne viruses infecting blood donors enables blood operators to undertake molecular epidemiology, confirm transfusion transmission and assess and characterize molecular and serological screening assays. The purpose of the study was to determine how blood operators globally value viral diversity surveillance and to assess its impact.Materials and Methods: An electronic questionnaire was developed and circulated to members of the International Society of Blood Transfusion-transmitted infectious diseases working party. Responses were compiled and complete data sets were analysed.Results: Ninety-seven percent of respondents agreed that monitoring viral genomic sequences was important to blood operators and the transfusion community. However, only 47% of respondents are currently doing this monitoring. The main limitations reported were a lack of financial resources and expertise. Sequencing techniques, primarily next-generation sequencing and also Sanger sequencing, were considered most appropriate, with the preferred option for testing being regional or national reference centres. Respondents agreed that engagement with public health authorities needs to be enhanced.Conclusion: Monitoring genomic sequences of blood-borne viruses is widely considered important by the transfusion community because of its direct applications for transfusion safety, and beyond for public health in general. Therefore, there is a need to strengthen collaboration between blood operators and public health authorities. While national and regional reference centres may be the most appropriate structure for such testing, international collaborations should not be overlooked. Overcoming financial barriers will be an important hurdle for many.

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