Rotavirus infection can cause diarrhea in many animal species. A 2-year-old indoor female Siamese cat with bloody mucoid diarrhea tested positive for rotavirus (RV) group A by real-time reverse transcription polymerase chain reaction (RT-PCR). Subsequent conventional RT-PCR amplification of the 11 RV segments and sequencing revealed a G3-P[9]-I2-R2-C2-M2-A3-N2-T3-E3-H3 genome constellation. Phylogenetic analysis showed that the VP4, VP7, NSP1, NSP3, NSP4, and NSP5 genes were closely related to those of human feline-like rotaviruses, while the VP1, VP2, VP3, VP6, and NSP2 genes were genetically closest to those of human bovine-like rotaviruses, suggesting that genetic reassortment had occurred. The uniqueness of this G3P[9] feline rotavirus strain expands our knowledge about feline rotaviruses.
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http://dx.doi.org/10.1007/s00705-022-05641-1 | DOI Listing |
J Gen Virol
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID), NHC Key Laboratory for Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Beijing 100052, PR China.
Species A rotaviruses (RVs), which belong to the family and contain a genome of 11 segmented dsRNA segments, are a leading cause of severe acute gastroenteritis in infants and children younger than 5 years of age. We previously developed a strategy to recover rotavirus vaccine strain LLR from 11 cloned plasmids. Here, we report an improved reverse genetics system for LLR by combining two or three transcriptional cassettes in a single plasmid, which substantially enhances rescue efficiency from 66.
View Article and Find Full Text PDFFood Res Int
January 2025
Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, 4726, Gyeonggi-do 17546, Republic of Korea. Electronic address:
This study investigated the survival of human rotavirus (HRV) on fresh beef, chicken, and lettuce stored at various temperatures, as well as the effect of UV-C exposure on HRV viability on these food surfaces. At 20 °C, the survival rate of three HRV strains (WA, 89-12C2, and DS-1) on beef, chicken, and lettuce decreased within 3 days, with the most significant reduction observed on beef. When stored at 4 °C, a significant reduction in HRV viability was observed by day 7, with the greatest decrease observed on beef, followed by chicken and lettuce.
View Article and Find Full Text PDFJ Infect Dis
January 2025
Division of Allergy & Infectious Diseases, University of Washington School of Medicine, Seattle, WA, USA.
Rotavirus is a leading cause of diarrhea among children but less known as a cause among adults. We describe clinical, epidemiologic, and genotype characteristics of a rotavirus outbreak among adults in King County, Washington occurring January-June 2023. Adult rotavirus incidence in 2023 was ten times higher than the same period in 2022 (5% versus 0.
View Article and Find Full Text PDFViruses
November 2024
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
Porcine rotavirus A (RVA) is one of the major etiological agents of diarrhea in piglets and constitutes a significant threat to the swine industry. A molecular epidemiological investigation was conducted on 2422 diarrhea samples from Chinese pig farms to enhance our understanding of the molecular epidemiology and evolutionary diversity of RVA. The findings revealed an average RVA positivity rate of 42% (943/2422), and the study included data from 26 provinces, primarily in the eastern, southern and southwestern regions.
View Article and Find Full Text PDFVet Microbiol
December 2024
Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Blvd. West, Saint-Hyacinthe, Québec J2S 8E3, Canada; Swine and Poultry Infectious Diseases Research Centre (CRIPA-FRQNT), Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, Québec J2S 2M2, Canada. Electronic address:
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