A5110234784- Viral gastroenteritis research and epidemiology
- Bacteriophages and microbial interactions
- Bayesian Methods and Mixture Models
- Fecal contamination and water quality
- Animal Virus Infections Studies
- Inhalation and Respiratory Drug Delivery
- Statistical Methods and Inference
- Mathematical Dynamics and Fractals
- Hepatitis Viruses Studies and Epidemiology
- Polymer Surface Interaction Studies
- Mollusks and Parasites Studies
- Stochastic processes and financial applications
- Advanced Optimization Algorithms Research
- Stochastic processes and statistical mechanics
- Pesticide and Herbicide Environmental Studies
- Viral Infections and Immunology Research
- Tensor decomposition and applications
- Polynomial and algebraic computation
- Optimal Experimental Design Methods
- Salmonella and Campylobacter epidemiology
- Spectroscopy and Chemometric Analyses
- Advanced Statistical Methods and Models
- Transboundary Water Resource Management
- Marine and environmental studies
- Marine Biology and Environmental Chemistry
Centre National de la Recherche Scientifique
2007-2021
Laboratoire Interdisciplinaire des Environnements Continentaux
2013-2021
Université de Lorraine
2014-2021
Laboratoire de Mathématiques et Applications
2009-2010
Laboratoire de Mathématiques
2009-2010
Laboratoire d'Étude des Microstructures et de Mécanique des Matériaux
1998-2008
Département d'Informatique
1991-2004
ABSTRACT Detection of specific genetic markers can rapidly identify the presence enteric viruses in groundwater. However, comparison stability characteristics between and infectivity is necessary to better interpret molecular data. Human adenovirus serotype 2 (HAdV2), conjunction with MS2 phages or GA phages, was spiked into raw groundwater microcosms. Viral periodically assessed by both real-time PCR methods. The results this yearlong study suggest that adenoviruses have most stable...
ABSTRACT Four methods of extraction and three concentration enteric viruses from mussels were comparatively evaluated by reverse transcriptase PCR (RT-PCR). Shellfish experimentally contaminated immersion in seawater seeded with astrovirus, hepatitis A virus, or poliovirus. Sixty-gram samples mussel tissues processed using borate buffer, glycine solution, saline beef, beef-Freon methods. The concentrated precipitation polyethylene glycol 6000 (PEG 6000) PEG 8000 organic flocculation. RT-PCR...
The rehabilitation of contaminated sites is becoming a rising preoccupation which requires the knowledge their past before realization suitable remediation. Physicochemical analysis must be realized jointly with use bioindicator organisms, which, owing to bioaccumulation capacities, will reveal bioavailability metals in soils. Among terrestrial invertebrates, gastropods like Helix aspersa possess an important organotropism for digestive gland and they can used active biomonitoring. During...
Noroviruses (NoV) are responsible for many shellfish outbreaks. Purification processes may be applied to oysters before marketing decrease potential fecal pollution. This step is rapidly highly effective in reducing
Microbial risk assessment is dependent on several biological and environmental factors that affect both the exposure characteristics to agents mechanisms of pathogenicity involved in pathogen-host relationship. Many studies still focus location parameters probability distribution representing concentration pathogens and/or toxin. However, mean or median by themselves are insufficient evaluate adverse effects associated with a given level exposure. Therefore, disease number factors, including...
This study was carried out first to determine if virus concentration by adsorption glass wool suitable for the detection of enterovirus genomes seminested RT-PCR in treated wastewater, and second compare presence infectious enteroviruses genomes. The experiments were performed on 57 wastewater samples from two treatment plants which use different processes. water analysed directly after wool. Concerning effect a step wool, results show that concentration, number positive increases...
In this work, we propose a new method to find monic irreducible polynomials with integer coefficients, only real roots, and span less than 4. The main idea is reduce the search of such solution Integer Linear Programming problems. frame, coefficients are looking for unknowns. We give inequality constraints specified by properties that should have, as typical distribution their roots. These can be inferred from those already treated in literature on topic.
Abstract Hepatitis E virus (HEV) usually causes self‐limited liver diseases but can also result in severe cases. Genotypes 1 (G1) and 2 circulate developing countries are human‐restricted waterborne, while zoonotic G3 G4 circulating industrialized preferentially infect human through consumption of contaminated meat. Our aims were to identify amino acid patterns HEV variants that could be involved pathogenicity or transmission modes, related their impact on antigenicity viral surface...
A sequential testing procedure for monitoring epidemiological data is considered. The approach based on a discrete time process of interim analyses using the likelihood ratio as test statistic. Sampling continues until either some predetermined practical limit reached or decision can be made about hazard rates characterizing populations to compared. stopping boundaries are determined so control type I error at given level during whole study. Thus, critical threshold derived from exact...