Human Protoparvoviruses

Next-generation sequencing and metagenomics have revolutionized the discovery of novel viruses. In recent years, three novel protoparvoviruses have been discovered in fecal samples of humans: bufavirus (BuV) in 2012, tusavirus (TuV) in 2014, and cutavirus (CuV) in 2016. BuV has since been studied th...

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Main Authors: Elina Väisänen, Yu Fu, Klaus Hedman, Maria Söderlund-Venermo
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/9/11/354
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author Elina Väisänen
Yu Fu
Klaus Hedman
Maria Söderlund-Venermo
author_facet Elina Väisänen
Yu Fu
Klaus Hedman
Maria Söderlund-Venermo
author_sort Elina Väisänen
collection DOAJ
description Next-generation sequencing and metagenomics have revolutionized the discovery of novel viruses. In recent years, three novel protoparvoviruses have been discovered in fecal samples of humans: bufavirus (BuV) in 2012, tusavirus (TuV) in 2014, and cutavirus (CuV) in 2016. BuV has since been studied the most, disclosing three genotypes that also represent serotypes. Besides one nasal sample, BuV DNA has been found exclusively in diarrheal feces, but not in non-diarrheal feces, suggesting a causal relationship. According to both geno- and seroprevalences, BuV appears to be the most common of the three novel protoparvoviruses, whereas TuV DNA has been found in only a single fecal sample, with antibody detection being equally rare. Moreover, the TuV sequence is closer to those of non-human protoparvoviruses, and so the evidence of TuV being a human virus is thus far insufficient. Interestingly, besides in feces, CuV has also been detected in skin biopsies of patients with cutaneous T-cell lymphoma and a patient with melanoma, while all other skin samples have tested PCR negative. Even if preliminary disease associations exist, the full etiological roles of these viruses in human disease are yet to be resolved.
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spelling doaj.art-e911fc1871a043f8a9e85dba8dec8a082022-12-22T03:21:10ZengMDPI AGViruses1999-49152017-11-0191135410.3390/v9110354v9110354Human ProtoparvovirusesElina Väisänen0Yu Fu1Klaus Hedman2Maria Söderlund-Venermo3Department of Virology, University of Helsinki, Helsinki 00290, FinlandDepartment of Virology, University of Helsinki, Helsinki 00290, FinlandDepartment of Virology, University of Helsinki, Helsinki 00290, FinlandDepartment of Virology, University of Helsinki, Helsinki 00290, FinlandNext-generation sequencing and metagenomics have revolutionized the discovery of novel viruses. In recent years, three novel protoparvoviruses have been discovered in fecal samples of humans: bufavirus (BuV) in 2012, tusavirus (TuV) in 2014, and cutavirus (CuV) in 2016. BuV has since been studied the most, disclosing three genotypes that also represent serotypes. Besides one nasal sample, BuV DNA has been found exclusively in diarrheal feces, but not in non-diarrheal feces, suggesting a causal relationship. According to both geno- and seroprevalences, BuV appears to be the most common of the three novel protoparvoviruses, whereas TuV DNA has been found in only a single fecal sample, with antibody detection being equally rare. Moreover, the TuV sequence is closer to those of non-human protoparvoviruses, and so the evidence of TuV being a human virus is thus far insufficient. Interestingly, besides in feces, CuV has also been detected in skin biopsies of patients with cutaneous T-cell lymphoma and a patient with melanoma, while all other skin samples have tested PCR negative. Even if preliminary disease associations exist, the full etiological roles of these viruses in human disease are yet to be resolved.https://www.mdpi.com/1999-4915/9/11/354human protoparvovirusbufavirustusaviruscutavirusdiscoveryepidemiologygastroenteritiscutaneous T-cell lymphomaemerging viruses
spellingShingle Elina Väisänen
Yu Fu
Klaus Hedman
Maria Söderlund-Venermo
Human Protoparvoviruses
Viruses
human protoparvovirus
bufavirus
tusavirus
cutavirus
discovery
epidemiology
gastroenteritis
cutaneous T-cell lymphoma
emerging viruses
title Human Protoparvoviruses
title_full Human Protoparvoviruses
title_fullStr Human Protoparvoviruses
title_full_unstemmed Human Protoparvoviruses
title_short Human Protoparvoviruses
title_sort human protoparvoviruses
topic human protoparvovirus
bufavirus
tusavirus
cutavirus
discovery
epidemiology
gastroenteritis
cutaneous T-cell lymphoma
emerging viruses
url https://www.mdpi.com/1999-4915/9/11/354
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