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Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
Persistent symptomless human metapneumovirus infection in hematopoietic stem cell transplant recipients
Maurizia Debiaggi1, Filippo Canducci, Michela Sampaolo
1Dipartimento di Scienze Morfologiche, Eidologiche e Cliniche, Sezione di Microbiologia, Universita di Pavia, via Brambilla, 74, 27100, Pavia, Italy. mdeb@unipv.it
Abstract:
Sequential nasopharyngeal aspirates from patients without respiratory symptoms undergoing hematopoietic stem cell transplantation (HSCT) were tested for genomic RNA of human metapneumovirus (hMPV). Persistent hMPV infection was documented in most of them and confirmed by virus isolation. hMPV infection etiology was also evaluated during the same period in samples from pediatric patients with acute respiratory diseases (ARDs). Sequence analysis of hMPV in HSCT recipients documented infection by hMPV genotype A and strong interhost similarity; this pattern differs from that observed in pediatric patients with ARDs. The data indicate that HSCT recipients may frequently develop symptomless hMPV infection.
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