1. Molecular characterization and frequency of human pegivirus type 1 (HPgV-1) in kidney transplant recipients from Central-West Brazil.
- Author
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da Silva FG, Moura DR, de Oliveira PM, de Souza Cardoso Quintão T, Cassemiro ÉM, de Campos GM, da Silva AS, Bezerra RDS, de Noronha LAG, Ramalho WM, de Araújo WN, Pereira AL, Slavov SN, and Haddad R
- Subjects
- Humans, Brazil epidemiology, Adult, Female, Male, Middle Aged, Pegivirus genetics, Young Adult, Prevalence, Aged, Kidney Transplantation adverse effects, Phylogeny, Genotype, Transplant Recipients statistics & numerical data, Flaviviridae Infections epidemiology, Flaviviridae Infections virology, RNA, Viral genetics
- Abstract
Human Pegivirus Type 1 (HPgV-1), a ubiquitous commensal virus, has been recently suggested as a marker of immunologic function. There is scarce data for the presence, genotypes, and molecular characteristics of HPgV-1 among kidney transplant recipients. Therefore, the objective of this study was to examine the prevalence and the molecular characteristics (cycle threshold, genotypes) of this viral infection among kidney transplant recipients from the Brasília, Federal District of Brazil. HPgV-1 RNA detection in the plasma was assessed by RT-qPCR. Positive samples were submitted to sequencing and phylogenetic analysis of the 5´-UTR portion of the viral genome. The estimated HPgV-1 prevalence among renal-transplant recipients was 20%. The performed phylogenetic inference revealed that the most frequent genotype among these patients was HPgV-1 genotype 2 (78.9%) presented by its two subgenotypes (2 A and 2B), followed by genotypes 1 and 3 (10.5% each). This study presents new data about the HPgV-1 circulation and molecular characteristics among kidney transplant recipients from the Federal District of Brazil. Further work is fundamental to examine the effect of HPgV-1 among patients with immunological suppression, including kidney transplant recipients., Competing Interests: Declarations. Nucleotide sequence accession number: The nucleotide sequences of HPgV-1 have been deposited in the NCBI database under accession number OR449336 to OR449354. Conflict of interest: The authors declare no conflict of interest., (© 2024. The Author(s) under exclusive licence to Sociedade Brasileira de Microbiologia.)
- Published
- 2024
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