Advertisement

Topics

Influence of environmental and seasonal factors on microbial contamination levels in clam production areas in southern Tunisia: Escherichia coli, Salmonella spp., hepatitis A virus and norovirus.

07:00 EST 1st December 2018 | BioPortfolio

Summary of "Influence of environmental and seasonal factors on microbial contamination levels in clam production areas in southern Tunisia: Escherichia coli, Salmonella spp., hepatitis A virus and norovirus."

To study the influence of environmental and biological factors on levels of contamination by Escherichia coli, Salmonella spp., hepatitis A virus (HAV) and norovirus in clam production areas, an epidemiological study was conducted on 791 samples of live clams (Ruditapes decussatus), 539 of which were sent for bacteriological analysis and 252 for detection of norovirus and HAV. These samples were collected in different production areas in the Sfax region of southern Tunisia over four consecutive years, from March 2013 to December 2016. The prevalence of positive samples was 36% for E. coli, 11% for Salmonella spp., 19% for norovirus and 3% for HAV. There was a significant correlation between contamination by E. coli and by Salmonella spp., as well as between contamination by noroviruses and by HAV and between contamination by noroviruses and by Salmonella spp. Temperature, the presence of migratory birds and tourism are the main factors affecting microbial contamination levels in bivalve molluscs.

Affiliation

Journal Details

This article was published in the following journal.

Name: Revue scientifique et technique (International Office of Epizootics)
ISSN: 0253-1933
Pages: 1049-1070

Links

DeepDyve research library

PubMed Articles [29742 Associated PubMed Articles listed on BioPortfolio]

Seasonal environmental parameters influence biochemical responses of the fiddler crab Minuca rapax to contamination in situ.

The mudflat fiddler crab Minuca rapax, typical of mangroves and intertidal zones in the Western Atlantic Ocean, responds to fluctuations in environmental parameters by biochemical and physiological ad...

Studying the influence of mass media and environmental factors on influenza virus transmission in the US Midwest.

Disease burden and high financial cost of seasonal influenza emphasize the importance of studying the epidemics transmission dynamics. Our aim in this article is to extend the Susceptible Exposed Infe...

Mercury contamination levels in the bioindicator piscivorous fish Hoplias aïmara in French Guiana rivers: mapping for risk assessment.

In French Guiana, native populations present high level of mercury contamination, which has been linked to the consumption of contaminated fishes. The goal of this study is to undertake a cartography ...

Bioreactivity and Microbiome of Biodeposits from Filter-Feeding Bivalves.

Bivalves serve an important ecosystem function in delivering organic matter from pelagic to benthic zones and are important in mediating eutrophication. However, the fate of this organic matter (i.e.,...

The Effect of Environmental Factors on Total Arsenic Accumulation in Sarcodia suiae, Rhodophyta.

Little is known about the effects of environmental factors on total arsenic (TAs) accumulation in marine Rhodophyta. The effects of five environmental factors (temperature, light intensity, pH, exposu...

Clinical Trials [8941 Associated Clinical Trials listed on BioPortfolio]

Clofarabine, Cytarabine and Mitoxantrone (CLAM) for Relapsed or Refractory AML

The study aims to evaluate the efficacy of the regimen CLAM in relapsed or refractory AML when used as first salvage for patients to relapse or fail after standard treatment with daunorubi...

Evaluation of Microbial Colonisation and Contamination Caused by the Transvaginal and Transabdominal Access for Cholecystectomy

Transvaginal hybrid procedures are of interest as an available NOTES procedure for the clinical routine. The gynaecologists` experiences and the available studies report on low morbidity r...

Study of the Combination of a Cyanoacrylate and Surgical Solutions in Reducing Skin Flora Contamination

The purpose of this study is to determine if there is a qualitative reduction in microbial skin flora post-surgery compared to pre-surgery when a cyanoacrylate based microbial sealant is u...

Factors Influencing Anesthetic Drug Requirement

The main objective of the study is to analyze the influence of several environmental (i.e., timing: seasonal, circadian) and demographic conditions (i.e., age, gender, menstrual cycle) on ...

Influence of Environmental Factors and Schizophrenia

Schizophrenia is a chronic and severe mental disorder with a lifetime prevalence of about 1 per cent, the symptoms can be very disabling and causing a heavy medical and socioeconomic. The...

Medical and Biotech [MESH] Definitions

The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment or workplace by measuring the amounts of these toxicants in the bodies of people and animals in that environment, among other methods. It also includes the measurement of ENVIRONMENTAL EXPOSURE. Levels in humans and animals are used as indicators of toxic levels of undesirable chemicals.

Seasonal suspension of insect growth development. It can be either induced by environmental cues (e.g., PHOTOPERIOD) or as a facultative part of the life cycle in order to time development with seasonal changes.

A multifactorial disease of CATTLE resulting from complex interactions between environmental factors, host factors, and pathogens. The environmental factors act as stressors adversely affecting the IMMUNE SYSTEM and other host defenses and enhancing transmission of infecting agents.

Habits and practices conducive to getting the right amount and quality of sleep, and include responding to environmental factors that may influence one's sleep.

Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. Each colony (i.e., microbial colony-forming unit) represents the progeny of a single cell in the original inoculum. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topics

Food
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...

Hepatitis
Hepatitis (plural hepatitides) is a medical condition defined by the inflammation of the liver and characterized by the presence of inflammatory cells in the tissue of the organ. The condition can be self-limiting (healing on its own) or can progress to ...


Searches Linking to this Article