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    Detection of SARS-CoV-2 RNA in the Serum Samples of Healthy Blood Donors
    (Galenos Publ House, 2023) Dalgic, Bahise Cagla Taskin; Yenisehirli, Gulgun; Tanriverdi, Elif Seren; Alici, Ayse; Otlu, Baris
    Introduction: The transmission rate of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by blood transfusion is thought to be low; however, it has not yet been proven whether the virus is transmitted by blood transfusion. Published studies have reported that SARS-CoV-2 RNA has been detected in the blood, plasma, or serum of infected individuals. This study aimed to investigate the presence of SARS-CoV-2 RNA in the serum of blood donors and evaluate the risk of transmission of SARS-CoV-2 by transfusion. Materials and Methods: In this study, 200 blood samples were taken from volunteer blood donors. In all serum samples, SARS-CoV-2 RNA was detected by reverse-transcription quantitative polymerase chain reaction assay. Medical records of the donors and recipients were retrospectively reviewed. Results: SARS-CoV-2 RNA was detected in seven (3.5%) of the donor serum samples. None of the positive donors had symptoms of coronavirus disease 2019 (COVID-19), and none had been admitted to the hospital after donation. Seven SARS-CoV-2 RNA-positive donor blood components were given to 12 recipients. No medical records indicated that COVID-19 occurred after the transfusion of blood components for recipients. Conclusion: This study demonstrated the presence of SARS-CoV-2 RNA in the serum of asymptomatic donors. Although our data suggest that the transfusion of blood products from asymptomatic donors to recipients with SARS-CoV-2 RNA in their serum may not result in COVID-19, further studies are needed to prove that SARS-CoV-2 is not transmitted by blood transfusion.