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Molecular Screening of Blood Donors for in Tyrol, Austria. | LitMetric

AI Article Synopsis

Article Abstract

Introduction: is a tick-borne intraerythrocytic parasite that is globally ubiquitous, yet understudied. Several species of have been shown to be transfusion-transmissible. has been reported in blood donors, animals, and ticks in the Tyrol (Western Austria), and regional cases of human babesiosis have been described. We sought to characterize the risk of to the local blood supply.

Methods: Prospective molecular testing was performed on blood donors who presented to regional, mobile blood collection drives in the Tyrol, Austria (27 May to October 4, 2021). Testing was conducted using the cobas Babesia assay (Roche Molecular Systems, Inc.), a commercial PCR assay approved for blood donor screening that is capable of detecting the 4 primary species causing human babesiosis (i.e., , , , and ). A confirmatory algorithm to manage initial PCR-reactive samples was developed, as were procedures for donor and product management.

Results: A total of 7,972 donors were enrolled and screened; 4,311 (54.1%) were male, with a median age of 47 years (IQR = 34-55). No positive cases of were detected, corresponding with an overall prevalence of 0.00% (95% CI: 0.00%, 0.05%).

Discussion: The findings suggest that the prevalence of is low in Austrian blood donors residing in the Tyrol, even during months of peak tick exposure. Although one cannot conclude the absence of in this population given the limited sample size, the findings suggest that the regional risk of transfusion-transmitted babesiosis is low.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10521223PMC
http://dx.doi.org/10.1159/000528793DOI Listing

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