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6 records – page 1 of 1.

[Evaluation of epidemic risk from pathogenic and opportunistic bacteria isolated from water of its various use types].

https://arctichealth.org/en/permalink/ahliterature136814
Source
Gig Sanit. 2010 Sep-Oct;(5):68-73
Publication Type
Article
Author
A V Zagainova
Iu G Talaeva
R A Dmitrieva
F I Ingel'
V V Iurchenko
T Z Artemova
A E Nedachin
E K Gipp
N N Butorina
D V Snegirev
Source
Gig Sanit. 2010 Sep-Oct;(5):68-73
Language
Russian
Publication Type
Article
Keywords
Bacteria - isolation & purification - pathogenicity
Epidemics - statistics & numerical data
Humans
Incidence
Opportunistic Infections - epidemiology - microbiology
Risk factors
Russia - epidemiology
Water Microbiology
Abstract
The investigation was concerned with wild gram-positive and gram-negative microorganisms (E. coli spp., Klebsiella spp., Salmonella spp., and the nonfermentative bacteria Pseudomonas spp.) isolated from the waters of different types, as well as museum cultures (E. coli strain 1257, E. coli strain 675, Salmonella enteritidis ATCC 5765, Staphylococcus aureus 906, and Pseudomonas aeruginosa ATCC 10145). The wild strains were isolated from water when conducting experimental and field studies; these are able to survive in the waters disinfected by various procedures (a guanidine-containing disinfectant in non-toxic concentrations; photo-activated decontamination with sensitizers; exposure to magnetic and ultrasound waves). The cytotoxic, adhesive, and invasive activities of the bacteria isolated from environmental water objects increased on their cultivation on nutrient growth media, by simulating their possible effects in man. The developed experimental approach makes it possible to estimate the hazard of potentially pathogenic bacteria in one test trial, by applying the BGM cells and may be used to assess the microbial risk.
PubMed ID
21341500 View in PubMed
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[Microbial risk assessment to establish water quality-enteric infection morbidity relationships].

https://arctichealth.org/en/permalink/ahliterature141289
Source
Gig Sanit. 2010 May-Jun;(3):28-31
Publication Type
Article
Author
A V Zagainova
Iu A Rakhmanin
Iu G Talaeva
S I Ivanov
T Z Artemova
A E Nedachin
E K Gipp
N N Butorina
Source
Gig Sanit. 2010 May-Jun;(3):28-31
Language
Russian
Publication Type
Article
Keywords
Acute Disease
Commonwealth of Independent States - epidemiology
Drinking
Humans
Infection - epidemiology
Intestinal Diseases - epidemiology
Models, Theoretical
Opportunistic Infections - epidemiology
Risk assessment
Russia
Sanitation
Water Microbiology
Water Supply - standards
Abstract
The authors have constructed a mathematical model for the cause-and-effect relationship between acute enteric infection (AEI) morbidity and the levels of water bacterial contamination and the properties of microorganisms. New procedures were proposed to calculate a risk for water-borne AEI depending on the sanitary-and hygienic conditions of water use and the degree of water contamination in the direct isolation of the causative agents of pathogenic and opportunistic infections, which allow the calculation and prediction of the occurrence of AEI at the individual and population levels.
PubMed ID
20737688 View in PubMed
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[Monitoring of bacterial contamination of water reservoirs in the Rostov region].

https://arctichealth.org/en/permalink/ahliterature136819
Source
Gig Sanit. 2010 Sep-Oct;(5):33-6
Publication Type
Article
Author
P V Zhuravlev
V V Aleshnia
S V Golovina
O P Panasovets
E A Nedachin
Iu G Talaeva
T Z Artemova
E K Gipp
A V Zagainova
N N Butorina
Source
Gig Sanit. 2010 Sep-Oct;(5):33-6
Language
Russian
Publication Type
Article
Keywords
Bacteria - isolation & purification
Environmental Monitoring - methods
Fresh Water - microbiology
Humans
Russia
Water Microbiology
Water Supply - standards
Abstract
The paper estimates the epidemic value of indicators for microbial contamination of waters from their main supply sources (waters from the Tsimlyansk Reservoir and the Nizhni Don River and drinking waters from the towns of Azov and Tsimlyansk) in the Rostov Region. The Tsimlyansk Reservoir water met the SanPiN 2.1.5.980-00 requirements for the normalizable indices of total coliform bacteria (TCB) and thermotolerant coliform bacteria (TtCB) in 54% of the samples; glucose-positive coliform bacteria (GPCB) and Salmonella were isolated in 100 and 60%, respectively. The Azov drinking water that met the SanPiN 2.1.4.1074-01 requirements for TCB and TtCB) was found to contain GPCB, Klebsiella, and Pseudomonas aeruginosa in 5.7, 4.8, and 3% of the samples, respectively Direct detection of pathogenic and potentially pathogenic microorganisms and the integral GPCB index are of the greatest prognostic value in assessing a microbial risk for waterborne enteric infections.
PubMed ID
21341491 View in PubMed
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[Problems of epidemic safety of drinking water use by the population of Russia].

https://arctichealth.org/en/permalink/ahliterature171245
Source
Gig Sanit. 2005 Nov-Dec;(6):14-8
Publication Type
Article
Author
A E Nedachin
T Z Artemova
R A Dmitrieva
T V Doskina
Iu G Talaeva
L V Ivanova
N N Butorina
D V Lavrova
A G Sanamian
A V Zagainova
V V Aleshnia
P V Zhuravlev
S V Golovina
O P Panasovets
E D Savilov
L M Mamontova
E V Anganova
Source
Gig Sanit. 2005 Nov-Dec;(6):14-8
Language
Russian
Publication Type
Article
Keywords
Disease Outbreaks - prevention & control - statistics & numerical data
Enterobacteriaceae - isolation & purification
Enterobacteriaceae Infections - epidemiology - microbiology - transmission
Environmental Illness - epidemiology - etiology
Fresh Water - microbiology
Humans
Incidence
Retrospective Studies
Risk factors
Russia - epidemiology
Water Microbiology - standards
Abstract
Quantitative relationships were studied between the indicators (common coliform bacteria (CCP), glucose-positive bacteria (GPB), thermoduric bacteria (TDB), coliform bacteria, enterococci, clostridia, coliphages) and the opportunistic (Pseudomonas aeruginosa, Proteus, Klebsiella) and pathogenetic (Salmonella and intestinal viruses) microorganisms at the stages of effluent purification and decontamination, in processes of self-purification in the water reservoirs and of water preparation at water-supplying stations, as well as in the association with the incidence of acute intestinal infections of bacterial and viral genesis in different climatic zones of the country. Salmonella and the opportunistic bacteria of the Enterobacteriaceae family and Pseudomonas aeruginosa were found to be highly resistant to detoxifying agents and environmental factors, adaptable, able to reproduce in pure water, to long survive in underground waters, and to accumulate when water is desalinated at the erections. The cases of intestinal infections were found in the population using the portable water of the standard quality in terms of E. coli, TDB, CCB, and enterococci. In this case only the wider integral index of GPB, which includes the indices of E. coli, TDB, CCB, as well as lactose-negative pathogenic and opportunistic species retains its sanitary significance in terms of all signs and is a reliable indicator of the potential epidemic hazard of drinking water use. Long-term studies have provided evidence for the sanitary value of coliphages as indicators of viral drinking water contamination.
PubMed ID
16404875 View in PubMed
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[Significance of indicator microorganisms in the assessment of a microbial risk in the occurrence of epidemic hazard in drinking water use].

https://arctichealth.org/en/permalink/ahliterature157003
Source
Gig Sanit. 2008 Mar-Apr;(2):23-7
Publication Type
Article
Author
V V Aleshnia
P V Zhuravlev
S V Golovina
O P Panasovets
A E Nedachin
T Z Artemova
L V Ivanova
Iu G Talaeva
A V Zagainova
N N Butorina
L M Ibragimova
I A Kolbasnikova
A A Glukhov
E I Shcheglova
G A Martynov
O L Kovalevskaia
V A Gordeev
M D Beloglazova
V I Subbotina
T N Chernogorova
Source
Gig Sanit. 2008 Mar-Apr;(2):23-7
Language
Russian
Publication Type
Article
Keywords
Disease Outbreaks - prevention & control - statistics & numerical data
Environmental Illness - epidemiology - microbiology
Fresh Water - microbiology
Humans
Incidence
Risk factors
Russia - epidemiology
Water Microbiology - standards
Abstract
Summary. The paper provides comparative characteristics of water quality in the assessment of a risk for intestinal infections in drinking water use. It has shown that of the greatest predictive value is direct detection of potentially pathogenic microorganisms, as well as the integral indicator determined by glucose fermentation, such as glucose-positive coliform bacteria. Estimation of the per cent of nonstandard samples of water before its entering the distribution network and in the latter, including glucose-positive Escherichia coli GPEC, is recommended. The samples containing GPEC in a quantity of more than 2 CFU/100 ml should be singly taken into account.
PubMed ID
18507167 View in PubMed
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[The value of glucose-positive coliform bacteria and potentially pathogenic bacteria as indicators of epidemiological safety of tap water].

https://arctichealth.org/en/permalink/ahliterature115853
Source
Gig Sanit. 2012 Nov-Dec;(6):95-7
Publication Type
Article
Author
P V Zhuravlev
V V Aleshnia
O P Panasovets
A A Morozova
T Z Artemova
Iu G Talaeva
A V Zagainova
E K Gipp
Source
Gig Sanit. 2012 Nov-Dec;(6):95-7
Language
Russian
Publication Type
Article
Keywords
Consumer Product Safety - standards
Drinking Water - microbiology - standards
Dysentery - epidemiology - etiology - microbiology
Enterobacteriaceae - isolation & purification - metabolism
Environmental Monitoring - methods
Fresh Water - analysis - microbiology
Glucose - metabolism
Humans
Morbidity - trends
Russia - epidemiology
Water Microbiology - standards
Water Quality - standards
Abstract
Due to intensive anthropogenic pollution of water environment generally accepted indicators of epidemic security of water bodies - common bacteria and thermotolerant coliform bacteria do not always permit to obtain an objective characterization of bacterial contamination of tap water. From the point of view of authors the integral index - glucose positive coliform bacteria most adequately reflect the sanitary-hygienic and epidemiological situation of water bodies. In monitoring for bacterial quality of tap water it is advisable to determine glucose positive coliform bacteria, that will provide the relevance of estimation of the epidemiological safety of water use. According to the method developed by the authors the calculation of the index of population risk of acute intestinal infections occurrence in dependence on the quality of tap water in Azov and Tsimlyansk towns.
PubMed ID
23458011 View in PubMed
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6 records – page 1 of 1.