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Journal articles on the topic 'F-specific RNA bacteriophages, fecal pollution'

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Published: 4 June 2021
Last updated: 18 February 2022

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1

Schaper, M., A. E. Durán, and J. Jofre. "Comparative Resistance of Phage Isolates of Four Genotypes of F-Specific RNA Bacteriophages to Various Inactivation Processes." Applied and Environmental Microbiology 68, no. 8 (2002): 3702–7. http://dx.doi.org/10.1128/aem.68.8.3702-3707.2002.

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ABSTRACT The effect of natural inactivation in freshwater, chlorination, ammonia, extreme pHs, temperature, and salt content on phage inactivation was evaluated on mixtures of F-specific RNA bacteriophage isolates belonging to genotypes I, II, III, and IV. The bacteriophages studied were previously but recently isolated from natural samples, characterized as F-specific RNA bacteriophages and genotyped by plaque hybridization with genotype-specific probes. Natural inactivation in river water was modeled by in situ incubation of bacteriophages inside submerged dialysis tubes. After several days
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2

Havelaar, A. H., and W. M. Pot-Hogeboom. "F-Specific RNA-Bacteriophages as Model Viruses in Water Hygiene: Ecological Aspects." Water Science and Technology 20, no. 11-12 (1988): 399–407. http://dx.doi.org/10.2166/wst.1988.0312.

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Model organisms can be used to detect the possible presence of pathogens (index-function) or to assess the performance of a treatment process (indicator-function). To evaluate the index-function of FRNA-phages their ecology was studied. These phages were shown to be absent from feces of humans, dogs, cows, horses and to occur in relatively low numbers only in feces of pigs and calves. High counts were obtained from feces of broiler chickens (103-107 pfu/g). In various types of wastewater, counts were usually between 103 and 104 pfu/ml. These high counts could not be explained by direct fecal i
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3

Blanch, Anicet R., Llu�s Belanche-Mu�oz, Xavier Bonjoch, et al. "Integrated Analysis of Established and Novel Microbial and Chemical Methods for Microbial Source Tracking." Applied and Environmental Microbiology 72, no. 9 (2006): 5915–26. http://dx.doi.org/10.1128/aem.02453-05.

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ABSTRACT Several microbes and chemicals have been considered as potential tracers to identify fecal sources in the environment. However, to date, no one approach has been shown to accurately identify the origins of fecal pollution in aquatic environments. In this multilaboratory study, different microbial and chemical indicators were analyzed in order to distinguish human fecal sources from nonhuman fecal sources using wastewaters and slurries from diverse geographical areas within Europe. Twenty-six parameters, which were later combined to form derived variables for statistical analyses, were
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4

Hartard, C., S. Banas, J. Loutreul, et al. "Relevance of F-Specific RNA Bacteriophages in Assessing Human Norovirus Risk in Shellfish and Environmental Waters." Applied and Environmental Microbiology 82, no. 18 (2016): 5709–19. http://dx.doi.org/10.1128/aem.01528-16.

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ABSTRACTHuman noroviruses (HuNoVs) are the main cause of shellfish-borne gastroenteritis outbreaks. In the absence of routine technical approaches allowing infectious particles to be detected, this viral pathogen is currently targeted by genome research, leading to difficult interpretations. In this study, we investigated the potential of F-specific RNA bacteriophages (FRNAPH) as fecal and viral contamination indicators in shellfish and water from a local harvesting area. FRNAPH were also used as microbial source tracking tools. Constraints imposed by detection limits are illustrated here by t
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5

Hartard, C., R. Rivet, S. Banas, and C. Gantzer. "Occurrence of and Sequence Variation among F-Specific RNA Bacteriophage Subgroups in Feces and Wastewater of Urban and Animal Origins." Applied and Environmental Microbiology 81, no. 18 (2015): 6505–15. http://dx.doi.org/10.1128/aem.01905-15.

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ABSTRACTF-specific RNA bacteriophages (FRNAPH) have been widely studied as tools for evaluating fecal or viral pollution in water. It has also been proposed that they can be used to differentiate human from animal fecal contamination. While FRNAPH subgroup I (FRNAPH-I) and FRNAPH-IV are often associated with animal pollution, FRNAPH-II and -III prevail in human wastewater. However, this distribution is not absolute, and variable survival rates in these subgroups lead to misinterpretation of the original distribution. In this context, we studied FRNAPH distribution in urban wastewater and anima
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Capizzi-Banas, Sandrine, Mélissa Palos Ladeiro, Fanny Bastien, et al. "The Utility of Dreissena polymorpha for Assessing the Viral Contamination of Rivers by Measuring the Accumulation of F-Specific RNA Bacteriophages." Water 13, no. 7 (2021): 904. http://dx.doi.org/10.3390/w13070904.

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River water that receives treated wastewater can be contaminated by pathogens including enteric viruses due to fecal pollution, which may represent an important public health hazard. There is a great diversity of enteric viruses and fecal bacteriophages, especially F-specific RNA bacteriophages (FRNAPHs), are commonly proposed as indicators of viral pollution due to a variety of characteristics such as their structural similarities to the main enteric viruses, their high concentrations in raw wastewater and their environmental survival rate, which is better than other cultivable enteric viruse
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7

Formiga-Cruz, M., A. K. Allard, A. C. Conden-Hansson, et al. "Evaluation of Potential Indicators of Viral Contamination in Shellfish and Their Applicability to Diverse Geographical Areas." Applied and Environmental Microbiology 69, no. 3 (2003): 1556–63. http://dx.doi.org/10.1128/aem.69.3.1556-1563.2003.

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ABSTRACT The distribution of the concentration of potential indicators of fecal viral pollution in shellfish was analyzed under diverse conditions over 18 months in diverse geographical areas. These microorganisms have been evaluated in relation to contamination by human viral pathogens detected in parallel in the analyzed shellfish samples. Thus, significant shellfish-growing areas from diverse countries in the north and south of Europe (Greece, Spain, Sweden, and the United Kingdom) were defined and studied by analyzing different physicochemical parameters in the water and the levels of Esch
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8

Doré, William J., Kathleen Henshilwood, and David N. Lees. "Evaluation of F-Specific RNA Bacteriophage as a Candidate Human Enteric Virus Indicator for Bivalve Molluscan Shellfish." Applied and Environmental Microbiology 66, no. 4 (2000): 1280–85. http://dx.doi.org/10.1128/aem.66.4.1280-1285.2000.

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ABSTRACT Escherichia coli is a widely utilized indicator of the sanitary quality of bivalve molluscan shellfish sold for human consumption. However, it is now well documented that shellfish that meet the E. coli standards for human consumption may contain human enteric viruses that cause gastroenteritis and hepatitis. In this study we investigated using F-specific RNA bacteriophage (FRNA bacteriophage) to indicate the likely presence of such viruses in shellfish sold for consumption. FRNA bacteriophage and E. coli levels were determined over a 2-year period for oysters (Crassostrea gigas) harv
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9

Wolf, Sandro, Joanne Hewitt, and Gail E. Greening. "Viral Multiplex Quantitative PCR Assays for Tracking Sources of Fecal Contamination." Applied and Environmental Microbiology 76, no. 5 (2010): 1388–94. http://dx.doi.org/10.1128/aem.02249-09.

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ABSTRACT Human and animal fecal pollution of the environment presents a risk to human health because of the presence of pathogenic viruses and bacteria. To distinguish between human and animal sources of pollution, we designed specific real-time reverse transcription (RT)-PCR assays for human and animal enteric viruses, including norovirus genogroups I, II, and III; porcine adenovirus types 3 and 5; ovine adenovirus; atadenovirus; and human adenovirus species C and F, which are excreted by infected humans, pigs, cattle, sheep, deer, and goats, and for the detection of F+ RNA bacteriophage geno
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10

Janahi, Essam M., Sakina Mustafa, Saba F. D. Parkar, Humood A. Naser, and Zaki M. Eisa. "Detection of Enteric Viruses and Bacterial Indicators in a Sewage Treatment Center and Shallow Water Bay." International Journal of Environmental Research and Public Health 17, no. 18 (2020): 6483. http://dx.doi.org/10.3390/ijerph17186483.

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The incidence of enteric viruses in treated wastewater and their potential release into the environment or use for agriculture are very critical matters in public health. In our study, PCR (polymerase chain reaction) analysis of enteric viruses was performed on 59 samples of influents and effluents collected from Tubli wastewater treatment plant (Water Pollution Control Center (WPCC)) and Tubli Bay, where the effluents were discharged, in Kingdom of Bahrain during two sampling periods. Four clinically essential waterborne enteric viruses were examined: enterovirus (EV), hepatitis A virus (HAV)
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11

Lee, Jung Eun, Mi Young Lim, Sei Yoon Kim, et al. "Molecular Characterization of Bacteriophages for Microbial Source Tracking in Korea." Applied and Environmental Microbiology 75, no. 22 (2009): 7107–14. http://dx.doi.org/10.1128/aem.00464-09.

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ABSTRACT We investigated coliphages from various fecal sources, including humans and animals, for microbial source tracking in South Korea. Both somatic and F+-specific coliphages were isolated from 43 fecal samples from farms, wild animal habitats, and human wastewater plants. Somatic coliphages were more prevalent and abundant than F+ coliphages in all of the tested fecal samples. We further characterized 311 F+ coliphage isolates using RNase sensitivity assays, PCR and reverse transcription-PCR, and nucleic acid sequencing. Phylogenetic analyses were performed based on the partial nucleic a
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12

Sinton, Lester W., Rochelle K. Finlay, and Philippa A. Lynch. "Sunlight Inactivation of Fecal Bacteriophages and Bacteria in Sewage-Polluted Seawater." Applied and Environmental Microbiology 65, no. 8 (1999): 3605–13. http://dx.doi.org/10.1128/aem.65.8.3605-3613.1999.

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ABSTRACT Sunlight inactivation rates of somatic coliphages, F-specific RNA bacteriophages (F-RNA phages), and fecal coliforms were compared in seven summer and three winter survival experiments. Experiments were conducted outdoors, using 300-liter 2% (vol/vol) sewage-seawater mixtures held in open-top chambers. Dark inactivation rates (kD s), measured from exponential survival curves in enclosed (control) chambers, were higher in summer (temperature range: 14 to 20°C) than in winter (temperature range: 8 to 10°C). Winter kD s were highest for fecal coliforms and lowest for F-RNA phages but wer
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13

Armon, Robert. "Bacteriophage Monitoring in Drinking Water: Do They Fulfil the Index or Indicator Function?" Water Science and Technology 27, no. 3-4 (1993): 463–70. http://dx.doi.org/10.2166/wst.1993.0393.

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2,187 drinking water samples from various locations in northern part of Israel were tested for bacteriophages presence/absence. Three major groups of bacteriophages were monitored (as related to bacterial host) : Somatic coliphages (host E.coli CN13), F-specific coliphages (host E.coli F+ amp), and Bacteroides fragilis phages (host B.fragilis HSP40). Simultaneously, monitoring of total coliforms and fecal coliforms has been performed. Correlation between bacteriophage group types and the standard water indicators such as coliforms and fecal coliforms was poor. The poor correlation may be attri
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14

Gourmelon, Michèle, Marie Paule Caprais, Raphaël Ségura, et al. "Evaluation of Two Library-Independent Microbial Source Tracking Methods To Identify Sources of Fecal Contamination in French Estuaries." Applied and Environmental Microbiology 73, no. 15 (2007): 4857–66. http://dx.doi.org/10.1128/aem.03003-06.

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ABSTRACT In order to identify the origin of the fecal contamination observed in French estuaries, two library-independent microbial source tracking (MST) methods were selected: (i) Bacteroidales host-specific 16S rRNA gene markers and (ii) F-specific RNA bacteriophage genotyping. The specificity of the Bacteroidales markers was evaluated on human and animal (bovine, pig, sheep, and bird) feces. Two human-specific markers (HF183 and HF134), one ruminant-specific marker (CF193′), and one pig-specific marker (PF163) showed a high level of specificity (>90%). However, the data suggest that the
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15

Armon, R., and Y. Kott. "Distribution comparison between coliphages and phages of anaerobic bacteria (Bacteroides fragilis) in water sources, and their reliability as fecal pollution indicators in drinking water." Water Science and Technology 31, no. 5-6 (1995): 215–22. http://dx.doi.org/10.2166/wst.1995.0607.

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E. coli somatic and male specific bacteriophages and Bacteroides fragilis bacteriophages had been surveyed in drinking water for three years. Concurrently, coliforms and fecal coliforms bacteria were also measured. Occasionally several large drinking water volumes were tested for enteric viruses and the above bacteriophages. Sampling site cluster shows good correlation between bacteriophages and bacterial indicators, as pollution index. Water from the three main supply sources showed increased bacteriophage presence as follows: well > lake >spring. Mixture of the three water supp
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16

Vantarakis, A., D. Venieri, G. Komninou, and M. Papapetropoulou. "Hybridisation of F+ RNA coliphages detected in shellfish samples with oligonucleotide probes to assess the origin of microbiological pollution of shellfish." Water Science and Technology 54, no. 3 (2006): 219–23. http://dx.doi.org/10.2166/wst.2006.472.

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Current measures for controlling the public health risks associated with bivalve molluscan shellfish consumption rely on the use of Escherichia coli to indicate the sanitary quality of shellfish harvesting areas. However, it has been demonstrated that E. coli is an inadequate indicator of the viral risk associated with shellfish. An alternative indicator, male-specific B+ coliphages, have been investigated as viral indicators of faecal contamination that may provide source-specific information for impacted environmental waters. This study compared the distribution of E. coli and F+ RNA bacteri
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17

Mauffret, Aourell, Marie-Paule Caprais, and Michèle Gourmelon. "Relevance of Bacteroidales and F-Specific RNA Bacteriophages for Efficient Fecal Contamination Tracking at the Level of a Catchment in France." Applied and Environmental Microbiology 78, no. 15 (2012): 5143–52. http://dx.doi.org/10.1128/aem.00315-12.

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ABSTRACTThe relevance of three host-associatedBacteroidalesmarkers (HF183, Rum2Bac, and Pig2Bac) and four F-specific RNA bacteriophage genogroups (FRNAPH I to IV) as microbial source tracking markers was assessed at the level of a catchment (Daoulas, France). They were monitored together with fecal indicators (Escherichia coliand enterococci) and chemophysical parameters (rainfall, temperature, salinity, pH, and turbidity) by monthly sampling over 2 years (n= 240 water samples) and one specific sampling following an accidental pig manure spillage (n= 5 samples). During the 2-year regular monit
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18

Myrmel, M., E. M. M. Berg, E. Rimstad, and B. Grinde. "Detection of Enteric Viruses in Shellfish from the Norwegian Coast." Applied and Environmental Microbiology 70, no. 5 (2004): 2678–84. http://dx.doi.org/10.1128/aem.70.5.2678-2684.2004.

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ABSTRACT Common blue mussels (Mytilus edulis), horse mussels (Modiolus modiolus), and flat oysters (Ostrea edulis) obtained from various harvesting and commercial production sites along the Norwegian coast were screened for the presence of norovirus by a real-time reverse transcription (RT)-nested PCR assay and for possible indicators of fecal contamination, i.e., for F-specific RNA bacteriophages (F-RNA phages) by plaque assay and for human adenoviruses and human circoviruses by nested PCR assay. The aims were to obtain relevant information for assessing the risk of transmission of enteric vi
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19

Blanch, Anicet R., Luis Belanche-Muñoz, Xavier Bonjoch, et al. "Tracking the origin of faecal pollution in surface water: an ongoing project within the European Union research programme." Journal of Water and Health 2, no. 4 (2004): 249–60. http://dx.doi.org/10.2166/wh.2004.0022.

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The objectives of this study are to generate knowledge about methods to track the sources of faecal pollution in surface waters, with the aim of having one or a few easy procedures applicable to different geographic areas in Europe. For this, a first field study using already proposed methods (genotypes of F-specific RNA bacteriophages, bacteriophages infecting Bacteroides fragilis, phenotypes of faecal coliforms and enterococci, and sterols) has been done in five areas representing a wide array of conditions in Europe. The present faecal indicators (faecal coliforms, enterococci, sulfite redu
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20

Stewart, Jill R., Jan Vinjé, Sjon J. G. Oudejans, Geoff I. Scott, and Mark D. Sobsey. "Sequence Variation among Group III F-Specific RNA Coliphages from Water Samples and Swine Lagoons." Applied and Environmental Microbiology 72, no. 2 (2006): 1226–30. http://dx.doi.org/10.1128/aem.72.2.1226-1230.2006.

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ABSTRACT Typing of F-specific RNA (FRNA) coliphages has been proposed as a useful method for distinguishing human from animal fecal contamination in environmental samples. Group II and III FRNA coliphages are generally associated with human wastes, but several exceptions have been noted. In the present study, we have genotyped and partially sequenced group III FRNA coliphage field isolates from swine lagoons in North Carolina (NC) and South Carolina (SC), along with isolates from surface waters and municipal wastewaters. Phylogenetic analysis of a region of the 5′ end of the maturation protein
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21

Toribio-Avedillo, Daniel, Julia Martín-Díaz, Juan Jofre, Anicet R. Blanch, and Maite Muniesa. "New approach for the simultaneous detection of somatic coliphages and F-specific RNA coliphages as indicators of fecal pollution." Science of The Total Environment 655 (March 2019): 263–72. http://dx.doi.org/10.1016/j.scitotenv.2018.11.198.

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Schaper, Melanie, and Joan Jofre. "Comparison of methods for detecting genotypes of F-specific RNA bacteriophages and fingerprinting the origin of faecal pollution in water samples." Journal of Virological Methods 89, no. 1-2 (2000): 1–10. http://dx.doi.org/10.1016/s0166-0934(00)00171-3.

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23

Hartard, Cédric, Sandrine Banas, Romain Rivet, Nicolas Boudaud, and Christophe Gantzer. "Rapid and sensitive method to assess human viral pollution in shellfish using infectious F-specific RNA bacteriophages: Application to marketed products." Food Microbiology 63 (May 2017): 248–54. http://dx.doi.org/10.1016/j.fm.2016.12.002.

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24

Martínez-Carreras, Núria, Leslie Ogorzaly, Cécile Walczak, et al. "F-Specific RNA Bacteriophage Transport in Stream Water: Hydro-Meteorological Controls and Association with Suspended Solids." Water 13, no. 16 (2021): 2250. http://dx.doi.org/10.3390/w13162250.

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F-specific RNA bacteriophages (FRNAPHs) are commonly used as indicators of faecal and viral contamination in waters. Once they enter surface waters, the exact role of suspended solids, sediments and hydro-meteorological factors in their fluvial fate and transport is poorly understood, and long-term studies (e.g., over years) are lacking. In this study, FRNAPH concentrations and genogroup distribution were measured in the Orne River (France) during two years at weekly intervals, and during four storm runoff events. Hydro-meteorological driving factors were investigated at both time scales. FRNA
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Schaper, M., J. Jofre, M. Uys, and W. O. K. Grabow. "Distribution of genotypes of F-specific RNA bacteriophages in human and non-human sources of faecal pollution in South Africa and Spain." Journal of Applied Microbiology 92, no. 4 (2002): 657–67. http://dx.doi.org/10.1046/j.1365-2672.2002.01600.x.

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26

Schaper, Melanie, and Joan Jofre. "Corrigendum to “Comparison of methods for detecting genotypes of F-specific RNA bacteriophages and fingerprinting the origin of faecal pollution in water samples”." Journal of Virological Methods 98, no. 2 (2001): 171. http://dx.doi.org/10.1016/s0166-0934(01)00362-7.

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27

Fauvel, Blandine, Leslie Ogorzaly, Henry-Michel Cauchie, and Christophe Gantzer. "Interactions of infectious F-specific RNA bacteriophages with suspended matter and sediment: Towards an understanding of FRNAPH distribution in a river water system." Science of The Total Environment 574 (January 2017): 960–68. http://dx.doi.org/10.1016/j.scitotenv.2016.09.115.

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28

Hernroth, Bodil E., Ann-Christine Conden-Hansson, Ann-Sofi Rehnstam-Holm, Rosina Girones, and Annika K. Allard. "Environmental Factors Influencing Human Viral Pathogens and Their Potential Indicator Organisms in the Blue Mussel, Mytilus edulis: the First Scandinavian Report." Applied and Environmental Microbiology 68, no. 9 (2002): 4523–33. http://dx.doi.org/10.1128/aem.68.9.4523-4533.2002.

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ABSTRACT This study was carried out in order to investigate human enteric virus contaminants in mussels from three sites on the west coast of Sweden, representing a gradient of anthropogenic influence. Mussels were sampled monthly during the period from February 2000 to July 2001 and analyzed for adeno-, entero-, Norwalk-like, and hepatitis A viruses as well as the potential viral indicator organisms somatic coliphages, F-specific RNA bacteriophages, bacteriophages infecting Bacteroides fragilis, and Escherichia coli. The influence of environmental factors such as water temperature, salinity,
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Fauvel, Blandine, Henry-Michel Cauchie, Christophe Gantzer, and Leslie Ogorzaly. "Contribution of hydrological data to the understanding of the spatio-temporal dynamics of F-specific RNA bacteriophages in river water during rainfall-runoff events." Water Research 94 (May 2016): 328–40. http://dx.doi.org/10.1016/j.watres.2016.02.057.

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30

Ibarluzea, Jesús M., Belén Moreno, Elena Serrano, et al. "Somatic coliphages and bacterial indicators of bathing water quality in the beaches of Gipuzkoa, Spain." Journal of Water and Health 5, no. 3 (2007): 417–26. http://dx.doi.org/10.2166/wh.2007.037.

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Monitoring the quality of the bathing waters of Gipuzkoa (the Basque Country, Spain) makes it possible to assess the suitability of its 15 beaches for bathing throughout each season. In 1998, the parameters E. coli, somatic coliphages (SOMCPH) and F-specific RNA bacteriophages (FRNAPH) were incorporated into the bathing water quality monitoring system. This enabled the study of the link between bacterial and viral indicators as well as the analysis of the ratios between both types of indicators in waters with different levels of pollution. Although bacterial indicators (total coliforms (TC) an
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Wilkes, Graham, Julie Brassard, Thomas A. Edge, et al. "Long-Term Monitoring of Waterborne Pathogens and Microbial Source Tracking Markers in Paired Agricultural Watersheds under Controlled and Conventional Tile Drainage Management." Applied and Environmental Microbiology 80, no. 12 (2014): 3708–20. http://dx.doi.org/10.1128/aem.00254-14.

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ABSTRACTSurface waters from paired agricultural watersheds under controlled tile drainage (CTD) and uncontrolled tile drainage (UCTD) were monitored over 7 years in order to determine if there was an effect of CTD (imposed during the growing season) on occurrences and loadings of bacterial and viral pathogens, coliphages, and microbial source tracking markers. There were significantly lower occurrences of human, ruminant, and livestock (ruminant plus pig)Bacteroidalesmarkers in the CTD watershed in relation to the UCTD watershed. As for pathogens, there were significantly lower occurrences ofS
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Hartard, C., M. Leclerc, R. Rivet, et al. "F-Specific RNA Bacteriophages, Especially Members of Subgroup II, Should Be Reconsidered as Good Indicators of Viral Pollution of Oysters." Applied and Environmental Microbiology 84, no. 1 (2017). http://dx.doi.org/10.1128/aem.01866-17.

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ABSTRACTNorovirus (NoV) is the leading cause of gastroenteritis outbreaks linked to oyster consumption. In this study, we investigated the potential of F-specific RNA bacteriophages (FRNAPH) as indicators of viral contamination in oysters by focusing especially on FRNAPH subgroup II (FRNAPH-II). These viral indicators have been neglected because their behavior is sometimes different from that of NoV in shellfish, especially during the depuration processes usually performed before marketing. However, a significant bias needs to be taken into account. This bias is that, in the absence of routine
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Leduc, Alice, Manon Leclerc, Julie Challant, et al. "F-Specific RNA Bacteriophages Model the Behavior of Human Noroviruses during Purification of Oysters: the Main Mechanism Is Probably Inactivation Rather than Release." Applied and Environmental Microbiology 86, no. 12 (2020). http://dx.doi.org/10.1128/aem.00526-20.

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ABSTRACT Noroviruses (NoV) are responsible for many shellfish outbreaks. Purification processes may be applied to oysters before marketing to decrease potential fecal pollution. This step is rapidly highly effective in reducing Escherichia coli; nevertheless, the elimination of virus genomes has been described to be much slower. It is therefore important to identify (i) the purification conditions that optimize virus removal and (ii) the mechanism involved. To this end, the effects of oyster stress, nutrients, and the presence of a potential competitor to NoV adhesion during purification were
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