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Assessing the prevalence of human enteric viruses in hospital wastewater to evaluate the effectiveness of wastewater treatment systems.
Ecotoxicol Environ Saf
January 2025
Department of Clinical Laboratory, No.906 Hospital of People's Liberation Army, Ningbo, China.
In this experiment, we employed Real-time PCR(RT-PCR) and metagenomic Next-Generation Sequencing (mNGS) techniques to detect the presence of Norovirus, Rotavirus Group A, Adenovirus Group F, and Astrovirus in untreated sewage from three major hospitals. A comparison with clinical lab test outcomes revealed Norovirus as having the highest infection rate, followed by Adenovirus Group F and Rotavirus Group A. Despite not testing for Astrovirus in clinical labs, its sewage detection rate was surpassed only by Norovirus, suggesting a potentially high clinical infection rate.
View Article and Find Full Text PDFNanocellulose-Based Passivated-Carbon Quantum Dots (P-CQDs) for Antimicrobial Applications: A Practical Review.
Polymers (Basel)
June 2023
Department of Agriculture, Faculty of Environmental Sciences, King Abdullaziz University (KAU), P.O. Box 80208, Jeddah 21589, Saudi Arabia.
Passivated-carbon quantum dots (P-CQDs) have been attracting great interest as an antimicrobial therapy tool due to their bright fluorescence, lack of toxicity, eco-friendly nature, simple synthetic schemes, and possession of photocatalytic functions comparable to those present in traditional nanometric semiconductors. Besides synthetic precursors, CQDs can be synthesized from a plethora of natural resources including microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC). Converting MCC into NCC is performed chemically via the top-down route, while synthesizing CODs from NCC can be performed via the bottom-up route.
View Article and Find Full Text PDFSpecies-Specific -Glycomes and Methylation Patterns of Oysters and and Their Possible Consequences for the Norovirus-HBGA Interaction.
Mar Drugs
June 2023
Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France.
Noroviruses, the major cause of acute viral gastroenteritis, are known to bind to histo-blood group antigens (HBGAs), including ABH groups and Lewis-type epitopes, which decorate the surface of erythrocytes and epithelial cells of their host tissues. The biosynthesis of these antigens is controlled by several glycosyltransferases, the distribution and expression of which varies between tissues and individuals. The use of HBGAs as ligands by viruses is not limited to humans, as many animal species, including oysters, which synthesize similar glycan epitopes that act as a gateway for viruses, become vectors for viral infection in humans.
View Article and Find Full Text PDFDetection of Norovirus and Hepatitis A Virus in Strawberry and Green Leafy Vegetables by Using RT-qPCR in Egypt.
Food Environ Virol
June 2022
Genetics and Molecular Biology Unit, Botany and Microbiology Department, Faculty of Science Helwan University, Helwan University, Helwan, Egypt.
Article Synopsis
- There is increasing consumer demand for organic fresh vegetables, but there's also a rise in foodborne outbreaks linked to viruses like norovirus and hepatitis A in these products.
- This study tested various green leafy vegetables and strawberries from regions in Egypt for these viruses using advanced detection methods.
- Results showed significant levels of contamination in strawberries and leafy greens, emphasizing the need for regular virus monitoring in fresh produce to ensure food safety and reduce health risks.
Fondness for sugars of enteric viruses confronts them with human glycans genetic diversity.
Hum Genet
June 2020
CRCINA, Inserm, Université d'Angers, Université de Nantes, IRS2, 22 Boulevard Benoni-Goullin, 44200, Nantes, France.
Together, norovirus and rotavirus are responsible for the majority of gastroenteritis cases worldwide, leading to a large number of deaths of children in low-income countries. Both attach to glycans of the histo-blood group antigen type (HBGAs) widely expressed in the digestive tract of vertebrates, albeit with interspecies differences. In humans, their synthesis is performed by glycosyltransferases encoded by the highly polymorphic ABO, FUT2 and FUT3 genes that are under long-term balanced selection.
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