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Group A rotavirus is a leading cause of severe acute gastroenteritis worldwide. In this study, the first complete coding sequences of 11 RNA segments of human group A rotavirus G12P[8] in Japan were determined by an unbiased viral metagenomics. Its genomic constellation (VP7-VP4-VP6-VP1-VP2-VP3-NSP1-NSP2-NSP3-NSP4-NSP5 genes) was identified as G12-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1. When performing the genetic analysis, we discovered an intergenotypic recombination event in the pig group A rotavirus G12P[8] strain BUW-14-A008. The novel recombination was found between two different genotypes G12 and G3 in the VP7 gene, and P[8] and P[13] in the VP4 gene.
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http://dx.doi.org/10.1016/j.meegid.2020.104656 | DOI Listing |
Infect Genet Evol
September 2025
Next Generation Sequencing Unit, School of Biomedical Sciences, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa; Division of Virology, School of Pathology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa. Electronic address: N
The sub-Saharan African region bears the highest burden of rotavirus-associated morbidity and mortality, with substantial genetic diversity observed in circulating strains despite vaccine introduction. The G8 genotype, originally predominant in bovine strains, has increasingly become prevalent in humans, suggesting a possible interface of animal-to-human transmission and highlighting its role in African strain diversity. In this study, we performed whole genome sequencing and evolutionary analysis of 21 archival G8P[4] strains collected through gastroenteritis surveillance in South Africa between 2009 and 2021 from children under five years of age.
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August 2025
Laboratory of Viral Gastroenteritis, National Institute for Infectious Diseases, INEI-ANLIS "Dr. Carlos G. Malbrán". Avenida Vélez Sársfield, 563, Ciudad de Buenos Aires, Argentina. Electronic address:
Background: In 2015, Argentina introduced the monovalent rotavirus vaccine into its National Immunization Program with a two-dose schedule at 2 and 4 months of age. This study assessed the impact of the universal rotavirus vaccination program on the burden of diarrheal disease in children under five years of age over a ten-year period, including the effects of the COVID-19 pandemic.
Methods: A mixed ecological time-trend analysis was conducted using national and regional secondary data from surveillance and health information systems.
Viruses
August 2025
Virology Center, Adolfo Lutz Institute, Sao Paulo 01246-902, Brazil.
In Brazil, molecular surveillance expanded after Rotarix™ vaccine introduction, alongside G2P[4] dominance. The G2P[6] genotype, despite sharing the same DS-1-like constellation as G2P[4] strains, remains rare. This retrospective study analyzed eight Brazilian G2P[6] strains (2012-2014) through RT-PCR and 11-segments sequencing, followed by phylogenetic analysis.
View Article and Find Full Text PDFViruses
August 2025
Next Generation Sequencing Unit, School of Biomedical Sciences, Faculty of Health Sciences, Bloemfontein 9300, South Africa.
While a global downward trend in rotavirus diarrhea cases has been observed following vaccine introduction, reassortment, genetic drift, and vaccine-escaping strains remain a concern, particularly in Sub-Saharan Africa. Here, we provide genomic insights into three equine-like G3P[8] rotavirus strains detected in Benin during the post-vaccine era. Whole-genome sequencing was performed using the Illumina MiSeq platform, and genomic analysis was conducted using bioinformatics tools.
View Article and Find Full Text PDFViruses
July 2025
Facultad de Ciencias de la Salud, Carrera de Medicina Veterinaria, Universidad de Las Américas, Antigua Vía a Nayón S/N, Quito EC 170124, Ecuador.
Enteric diseases represent one of the main causes of morbidity and mortality in poultry production, especially in turkeys (), significantly affecting the profitability of the sector. Turkey enteric complex (PEC) is a multifactorial syndrome characterized by diarrhea, stunting, poor feed conversion, and increased mortality in young turkeys. Its aetiologia includes multiple avian enteric viruses, including astrovirus, rotavirus, reovirus, parvovirus, adenovirus, and coronavirus, which can act singly or in co-infection, increasing clinical severity.
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