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. 2023 Oct;29(10):2108-21011.
doi: 10.3201/eid2910.230746. Epub 2023 Jul 21.

Listeria monocytogenes Transmission from Donated Blood to Platelet Transfusion Recipient, Italy

Maria Gori, Luca Bolzoni, Erika Scaltriti, Lilia Andriani, Vito Marano, Francesca Morabito, Clara Fappani, Danilo Cereda, Enza Giompapa, Rosa Chianese, Paola Lanzini, Livia Antonietta Martinelli, Silvia Bianchi, Antonella Amendola, Stefano Pongolini, Elisabetta Tanzi

Listeria monocytogenes Transmission from Donated Blood to Platelet Transfusion Recipient, Italy

Maria Gori et al. Emerg Infect Dis. 2023 Oct.

Abstract

We report Listeria monocytogenes infection in a patient in Italy who was transfused with pooled platelet concentrate. Genomic analysis revealed that L. monocytogenes isolates from the donor blood unit, the transfused platelets, and the patient's blood culture were genetically closely related, confirming transfusion transmission. Additional surveillance and secondary bacterial screening could improve transfusion safety.

Keywords: Italy; Listeria monocytogenes; bacteria; bloodborne transmission; listeriosis; surveillance; whole-genome sequencing.

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