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Martins JCL, Gonçalves A, Fernandes C, Cabecinha E, Monteiro S, Guedes H, Almeida G, Garcia J, da Silva GJ, Varandas S, Saavedra MJ. Multidrug-Resistant Escherichia coli Accumulated by Freshwater Bivalves: An Underestimated Risk for Public Health? Pathogens 2024; 13:617. [PMID: 39204218 PMCID: PMC11357147 DOI: 10.3390/pathogens13080617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/11/2024] [Accepted: 07/24/2024] [Indexed: 09/03/2024] Open
Abstract
As bioindicators, freshwater bivalves are crucial for the assessment of the contamination impact on different levels of biological integration. Escherichia coli is used as a bioindicator of water fecal contamination, representing a critical global concern, especially with the rise of multidrug-resistant (MDR) strains. Phylogenetic diversity, pathotypic characterization, and antibiotic resistance profiles of E. coli isolated from freshwater bivalves (Anodonta anatina) were assessed. Samples were collected from the Tua River in Northern Portugal, from two different sites, Chelas and Barcel, representing different degrees of contamination. Antimicrobial susceptibility testing was performed by the disk diffusion method, and characterizations of the phylogenetic groups and pathotypes were assessed by PCR-multiplex and real-time PCR-multiplex, respectively. Results showed that 60% of isolates were characterized as MDR, including resistance to carbapenems, considered the last resort against multidrug-resistant bacteria. Within this study, it was also possible to verify the antimicrobial resistance (AMR) profile differences between the two sampling sites, with bivalve isolates from the Chelas site showing a higher percentage of antibiotic resistance. Among the E. coli isolates, the highest prevalence (55%) was observed in group B1, followed by group D or E (15%), group A (10%), and group E or Clade I (10%). None of the isolates were classified as diarrheagenic E. coli (DEC). This work highlights the potential transmission of antimicrobial-resistant bacteria through bivalves in the food chain. The 'One Health' approach is crucial for combating antimicrobial resistance, namely in edible freshwater species, emphasizing active surveillance to protect human, animal, and environmental health against the spread of antibiotic-resistant bacteria in aquatic environments.
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Affiliation(s)
- Joana C. L. Martins
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- CECAV—Veterinary and Animal Research Centre, Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- AquaValor—Centro de Valorização e Transferência de Tecnologia da Água, 5400-342 Chaves, Portugal
| | - Ana Gonçalves
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- CECAV—Veterinary and Animal Research Centre, Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Conceição Fernandes
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CIMO—Centro de Investigação de Montanha, SusTEC-Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha, IPB—Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Edna Cabecinha
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- CIBIO—Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Campus de Vairão, 4485-661Vairão, Portugal
| | - Sandra Monteiro
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
| | - Hugo Guedes
- National Institute for Agricultural and Veterinary Research I.P. (INIAV), Lugar da Madalena, 4485-655 Vila do Conde, Portugal; (H.G.); (G.A.)
| | - Gonçalo Almeida
- National Institute for Agricultural and Veterinary Research I.P. (INIAV), Lugar da Madalena, 4485-655 Vila do Conde, Portugal; (H.G.); (G.A.)
- Centre for Study in Animal Science (CECA-ICETA), Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Porto, 4099-002 Porto, Portugal
| | - Juliana Garcia
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- AquaValor—Centro de Valorização e Transferência de Tecnologia da Água, 5400-342 Chaves, Portugal
| | - Gabriela J. da Silva
- Faculty of Pharmacy, Center for Neurosciences and Cell Biology, University of Coimbra, 3000-548 Coimbra, Portugal;
| | - Simone Varandas
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- CIBIO—Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Campus de Vairão, 4485-661Vairão, Portugal
| | - Maria J. Saavedra
- AB2Unit—Antimicrobials, Biocides & Biofilms Unit, Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.C.L.M.); (A.G.); (C.F.); (E.C.); (S.M.); (S.V.)
- CITAB—Centre for the Research and Technology of Agro-Environment and Biological Sciences, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- CECAV—Veterinary and Animal Research Centre, Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
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2
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Chai Z, Bi H. Capture and identification of bacteria from fish muscle based on immunomagnetic beads and MALDI-TOF MS. Food Chem X 2022; 13:100225. [PMID: 35498980 PMCID: PMC9039919 DOI: 10.1016/j.fochx.2022.100225] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 01/02/2022] [Accepted: 01/20/2022] [Indexed: 11/12/2022] Open
Abstract
A protocol for the bacterial analysis in fish muscle was developed. Anti-bacterial antibodies modified magnetic beads (MBs) were used to capture bacteria. The bacterial identification accuracy from different complex food matrices was good. The presence of 10 CFU/mL E. coli is still detectable. It is promising to be applied in bacterial analysis to ensure muscle food safety.
In the present study, E. coli was taken as a model bacterium, anti-E. coli functionalized magnetic beads were constructed and used to capture E. coli from aqueous extracts of fish sarcoplasmic protein (FSP) and fish muscle protein of sablefish. The excellency of the reproducibility of the present protocol was demonstrated by capturing E. coli from sablefish FSP extracts. The presence of 10 CFU/mL E. coli is still detectable. A microbial safety test on the surface of fish muscle was successfully performed. The bacterial identification accuracy from samples with different matrices was found to be excellent with RSD = 3%. High specific detection of target bacteria in complex biological samples was testified by spiking Staphylococcus aureus and Klebsiella pneumoniae in samples as interference. Ten biomarker ions were discovered for E. coli’s recognition. It is promising to apply the present protocol in bacterial analysis in muscle food samples to ensure their safety.
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Lattos A, Chaligiannis I, Papadopoulos D, Giantsis IA, Petridou EI, Vafeas G, Staikou A, Michaelidis B. How Safe to Eat Are Raw Bivalves? Host Pathogenic and Public Health Concern Microbes within Mussels, Oysters, and Clams in Greek Markets. Foods 2021; 10:2793. [PMID: 34829074 PMCID: PMC8623680 DOI: 10.3390/foods10112793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/07/2021] [Accepted: 11/11/2021] [Indexed: 12/27/2022] Open
Abstract
Raw-bivalves consumption is a wide trend in Mediterranean countries. Despite the unambiguous nutritional value of seafood, raw consumption of bivalves may involve risks that could pose a significant threat to consumers' health. Their filter-feeding behavior is responsible for the potential hosting of a wide variety of microorganisms, either pathogenic for the bivalves or public health threats. Under this prism, the current study was conducted in an effort to evaluate the risk of eating raw bivalves originating from the two biggest seafood markets in Thessaloniki, the largest production area of bivalves in Greece. Both microbiological and molecular methodologies were applied in order to assess the presence of various harmful microbes, including noroviruses, Bonamia, Marteilia, Esherichia coli, Salmonella, and Vibrio. Results indicated the presence of several Vibrio strains in the analyzed samples, of which the halophilic Vibrio harveyi was verified by 16S rRNA sequencing; other than this, no enteropathogenic Vibrio spp. was detected. Furthermore, although Esherichia coli was detected in several samples, it was mostly below the European Union (EU) legislation thresholds. Interestingly, the non-target Photobacterium damselae was also detected, which is associated with both wound infections in human and aquatic animals. Regarding host pathogenic microorganisms, apart from Vibrio harveyi, the protozoan parasite Marteilia refrigens was identified in oysters, highlighting the continuous infection of this bivalve in Greece. In conclusion, bivalves can be generally characterized as a safe-to-eat raw food, hosting more bivalve pathogenic microbes than those of public health concern.
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Affiliation(s)
- Athanasios Lattos
- Laboratory of Animal Physiology, Department of Zoology, Faculty of Science, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.C.); (D.P.); (B.M.)
- Environmental Control and Research Laboratory, Region of Central Macedonia, 54625 Thessaloniki, Greece;
| | - Ilias Chaligiannis
- Laboratory of Animal Physiology, Department of Zoology, Faculty of Science, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.C.); (D.P.); (B.M.)
- Hellenic Agricultural Organization-DEMETER, Veterinary Research Institute of Thessaloniki, Campus of Thermi, 57001 Thermi, Greece;
| | - Dimitrios Papadopoulos
- Laboratory of Animal Physiology, Department of Zoology, Faculty of Science, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.C.); (D.P.); (B.M.)
- Environmental Control and Research Laboratory, Region of Central Macedonia, 54625 Thessaloniki, Greece;
| | - Ioannis A. Giantsis
- Environmental Control and Research Laboratory, Region of Central Macedonia, 54625 Thessaloniki, Greece;
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
| | - Evanthia I. Petridou
- Laboratory of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, School of Health Science, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George Vafeas
- Hellenic Agricultural Organization-DEMETER, Veterinary Research Institute of Thessaloniki, Campus of Thermi, 57001 Thermi, Greece;
| | - Alexandra Staikou
- Environmental Control and Research Laboratory, Region of Central Macedonia, 54625 Thessaloniki, Greece;
- Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Basile Michaelidis
- Laboratory of Animal Physiology, Department of Zoology, Faculty of Science, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.C.); (D.P.); (B.M.)
- Environmental Control and Research Laboratory, Region of Central Macedonia, 54625 Thessaloniki, Greece;
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Colaiuda V, Di Giacinto F, Lombardi A, Ippoliti C, Giansante C, Latini M, Mascilongo G, Di Renzo L, Berti M, Conte A, Ferri N, Verdecchia M, Tomassetti B. Evaluating the impact of hydrometeorological conditions on E. coli concentration in farmed mussels and clams: experience in Central Italy. JOURNAL OF WATER AND HEALTH 2021; 19:512-533. [PMID: 34152303 DOI: 10.2166/wh.2021.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Highly populated coastal environments receive large quantities of treated and untreated wastewater from human and industrial sources. Bivalve molluscs accumulate and retain contaminants, and their analysis provides evidence of past contamination. Rivers and precipitation are major routes of bacteriological pollution from surface or sub-surface runoff flowing into coastal areas. However, relationships between runoff, precipitation, and bacterial contamination are site-specific and dependent on the physiographical characteristics of each catchment. In this work, we evaluated the influence of precipitation and river discharge on molluscs' Escherichia coli concentrations at three sites in Central Italy, aiming at quantifying how hydrometeorological conditions affect bacteriological contamination of selected bivalve production areas. Rank-order correlation analysis indicated a stronger association between E. coli concentrations and the modelled Pescara River discharge maxima (r = 0.69) than between E. coli concentration and rainfall maxima (r = 0.35). Discharge peaks from the Pescara River caused an increase in E. coli concentration in bivalves in 87% of cases, provided that the runoff peak occurred 1-6 days prior to the sampling date. Precipitation in coastal area was linked to almost 60% of cases of E. coli high concentrations and may enhance bacterial transportation offshore, when associated with a larger-scale weather system, which causes overflow occurrence.
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Affiliation(s)
- Valentina Colaiuda
- CETEMPS, University of L'Aquila, L'Aquila, Italy E-mail: ; Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Federica Di Giacinto
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | | | - Carla Ippoliti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Carla Giansante
- Agenzia Regionale per la Tutela dell'Ambiente - ARTA Abruzzo, Pescara, Italy
| | - Mario Latini
- World Organization for Animal Health - OIE, Paris, France
| | - Giuseppina Mascilongo
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Ludovica Di Renzo
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Miriam Berti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Annamaria Conte
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Nicola Ferri
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Marco Verdecchia
- Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
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5
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Sharp JH, Clements K, Diggens M, McDonald JE, Malham SK, Jones DL. E. coli Is a Poor End-Product Criterion for Assessing the General Microbial Risk Posed From Consuming Norovirus Contaminated Shellfish. Front Microbiol 2021; 12:608888. [PMID: 33679634 PMCID: PMC7933002 DOI: 10.3389/fmicb.2021.608888] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/18/2021] [Indexed: 11/13/2022] Open
Abstract
The fecal indicator organism (FIO) Escherichia coli is frequently used as a general indicator of sewage contamination and for evaluating the success of shellfish cleaning (depuration) processes. To evaluate the robustness of this approach, the accumulation, retention, and depuration of non-pathogenic E. coli, pathogenic E. coli O157:H7 and norovirus GII (NoV GII) RNA were evaluated using a combination of culture-based (E. coli) and molecular methods (E. coli, NoV GII) after exposure of mussels (Mytilus edulis) to water contaminated with human feces. We simulated water contamination after a point-source release from a combined sewer overflow (CSO) where untreated wastewater is released directly into the coastal zone. All three microbiological indicators accumulated rapidly in the mussels, reaching close to maximum concentration within 3 h of exposure, demonstrating that short CSO discharges pose an immediate threat to shellfish harvesting areas. Depuration (72 h) in clean water proved partially successful at removing both pathogenic and non-pathogenic E. coli from shellfish tissue, but failed to eradicate NoV GII RNA. We conclude that current EU standards for evaluating microbiological risk in shellfish are inadequate for protecting consumers against exposure to human norovirus GII found in polluted marine waters.
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Affiliation(s)
- Jasmine H Sharp
- School of Ocean Sciences, Bangor University, Bangor, United Kingdom
| | - Katie Clements
- School of Ocean Sciences, Bangor University, Bangor, United Kingdom.,School of Natural Sciences, Bangor University, Bangor, United Kingdom
| | - Mallory Diggens
- School of Natural Sciences, Bangor University, Bangor, United Kingdom
| | - James E McDonald
- School of Natural Sciences, Bangor University, Bangor, United Kingdom
| | - Shelagh K Malham
- School of Ocean Sciences, Bangor University, Bangor, United Kingdom
| | - Davey L Jones
- School of Natural Sciences, Bangor University, Bangor, United Kingdom.,UWA School of Agriculture and Environment, University of Western Australia, Perth, WA, Australia
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6
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Lamon S, Piras F, Meloni D, Agus V, Porcheddu G, Pes M, Cambula MG, Esposito G, Fois F, Consolati SG, Mureddu A. Enumeration of Escherichia coli and determination of Salmonella spp. and verotoxigenic Escherichia coli in shellfish ( Mytilus galloprovincialis and Ruditapes decussatus) harvested in Sardinia, Italy. Ital J Food Saf 2020; 9:8625. [PMID: 33324586 PMCID: PMC7731884 DOI: 10.4081/ijfs.2020.8625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 02/04/2020] [Indexed: 12/02/2022] Open
Abstract
The aim of the present study was to evaluate the occurrence of Salmonella spp., Verotoxigenic E. Coli (VTEC) and enumerate E. coli in shellfish (Mytilus galloprovincialis and Ruditapes decussatus) collected before and after depuration from two class B harvesting areas located in Sardinia (Italy). All the samples were analyzed for Salmonella spp. detection according to European Commission Regulation (EC) 2073/2005 and examined using the five tube Most-Probable-Number (MPN) method for enumeration of E. coli in accordance with the European Union reference method ISO 16649-3:2015. E. coli VTEC was investigated following a direct multiplex Polymerase Chain Reaction (PCR) screening test. The enumeration of E. coli met the European law limit for Class A areas of 230 MPN/100g. The averaged enumeration of E. coli in samples of M. galloprovincialis and R. decussatus collected at the harvesting time was 39 and 37 MPN/100 g respectively. The average contamination levels in samples collected after purification were 58 MPN/100g (M. galloprovincialis) and 32 MPN/100 g (R. decussatus). E. coli VTEC was not detected, on the contrary, Salmonella ser. Typhimurium was detected in one sample of M. galloprovincialis and in one sample of R. decussatus collected at the harvesting time. No significant associations were observed between E. coli levels in shellfish and environmental parameters of water or with the detection of Salmonella ser. Typhimurium in M. galloprovincialis and R. decussatus samples. Nevertheless, the occurrence of Salmonella ser. Typhimurium, involved in human infection outbreaks, should be considered a potential risk for consumers.
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Affiliation(s)
- Sonia Lamon
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Francesca Piras
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Domenico Meloni
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Vanessa Agus
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | | | - Margherita Pes
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | | | - Giuseppe Esposito
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Federica Fois
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | | | - Anna Mureddu
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
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7
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Divya PS, Thajudeen J, Yousuf J, Madavan A, Abdulla MH. Genetic relatedness, phylogenetic groups, antibiotic resistance, and virulence genes associated with ExPEC in
Escherichia coli
isolates from finfish and shellfish. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Puthenkandathil Sukumaran Divya
- Department of Marine Biology, Microbiology and Biochemistry School of Marine Sciences Cochin University of Science and Technology Cochin India
| | - Jabir Thajudeen
- Department of Marine Biology, Microbiology and Biochemistry School of Marine Sciences Cochin University of Science and Technology Cochin India
| | - Jesmi Yousuf
- Department of Marine Biology, Microbiology and Biochemistry School of Marine Sciences Cochin University of Science and Technology Cochin India
| | - Anand Madavan
- School of Environmental Studies Cochin University of Science and Technology Cochin India
| | - Mohamed Hatha Abdulla
- Department of Marine Biology, Microbiology and Biochemistry School of Marine Sciences Cochin University of Science and Technology Cochin India
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8
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Bazzoni AM, Mudadu AG, Esposito G, Urru R, Ortu S, Mara L, Uda MT, Arras I, Lorenzoni G, Sanna G, Bazzardi R, Marongiu E, Virgilio S, Meloni D. Bacterial and Viral Investigations Combined with Determination of Phytoplankton and Algal Biotoxins in Mussels and Water from a Mediterranean Coastal Lagoon (Sardinia, Italy). J Food Prot 2019; 82:1501-1511. [PMID: 31411509 DOI: 10.4315/0362-028x.jfp-18-569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Calich Lagoon is a Mediterranean coastal lagoon located along the northwestern coast of Sardinia (Italy). The connection to marine and fresh water determines the high productivity of this coastal lagoon. Despite its great potential and the presence of natural beds of bivalve mollusks (Mytilus galloprovincialis), the lagoon has not yet been classified for shellfish production. In this study, through a multidisciplinary approach, the presence of several bacterial pathogens (Escherichia coli, Salmonella spp., and Vibrio spp.) and viral pathogens (hepatitis A virus and norovirus genogroups I and II) was evaluated from March 2017 to February 2018. In addition, phytoplankton composition in lagoon waters and associated algal biotoxins (paralytic and diarrhetic shellfish poisoning) in mussels were also monitored. The aim of this study was to provide useful data to improve knowledge about their seasonal presence and to assess the potential risk for public health, as well as to provide input for future conservation and management strategies. In mussels, Salmonella spp. were found in spring, along with E. coli, but Salmonella spp. were not found in autumn or winter, even though E. coli was detected in these seasons. Vibrio parahaemolyticus was found in autumn and winter, but not in spring. Norovirus genogroups I and II were found in winter samples. None of the bacteria were found in summer. Algal biotoxins have never been detected in mussel samples. Among potentially harmful phytoplankton, only Pseudo-nitzschia spp. were present, mainly in summer. The results showed that a possible bacterial and viral contamination, together with the presence of potentially toxic microalgae, is a real problem. Therefore, the development of natural resource management strategies is necessary to ensure the good quality of waters and guarantee the protection of consumers.
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Affiliation(s)
- Anna Maria Bazzoni
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Alessandro Graziano Mudadu
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Giuseppe Esposito
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.]).,University of Sassari, Department of Veterinary Medicine, Via Vienna 2, 07100 Sassari, Italy
| | - Roberta Urru
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Sergio Ortu
- Regional Natural Park of Porto Conte, SP. 55 N. 44, 07041 Alghero, Italy
| | - Laura Mara
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Maria Teresa Uda
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Igor Arras
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Giuseppa Lorenzoni
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Giovanna Sanna
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Riccardo Bazzardi
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Edoardo Marongiu
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Sebastiano Virgilio
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.])
| | - Domenico Meloni
- Veterinary Public Health Institute of Sardinia, Complex Structure of Food Hygiene, Via Duca degli Abruzzi 8, 07100 Sassari, Italy (ORCID: https://orcid.org/0000-0001-7236-3845 [A.M.B.]).,University of Sassari, Department of Veterinary Medicine, Via Vienna 2, 07100 Sassari, Italy
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9
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Miotto M, Ossai SA, Meredith JE, Barretta C, Kist A, Prudencio ES, R. W. Vieira C, Parveen S. Genotypic and phenotypic characterization of Escherichia coli isolated from mollusks in Brazil and the United States. Microbiologyopen 2019; 8:e00738. [PMID: 30311420 PMCID: PMC6528596 DOI: 10.1002/mbo3.738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/27/2018] [Accepted: 08/28/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to determine the serogroups, antimicrobial resistance and genetic diversity of Escherichia coli isolates from samples of bivalve mollusks collected along Santa Catarina coast, Brazil, and from the Chesapeake Bay, Maryland, USA. One hundred forty-one E. coli isolates were characterized for serogroups with 181 specific O antisera and antimicrobial susceptibility using the disk diffusion method. The genetic diversity was assessed using pulsed-field gel electrophoresis (PFGE). The results showed that among the isolates, 19.9% were classified as multi-drug resistant (MDR) and resistance was most frequently observed to cephalothin, nitrofurantoin, and ampicillin. The predominant serogroups were O6, O8, and O38. Some serogroups were recognized as pathogenic E. coli. PFGE dendrograms indicated extensive genetic diversity among the isolates. Although characteristics of the E. coli isolates were highly variable, it is important to note that E. coli belonging to pathogenic serogroups and MDR isolates are present in mollusks of both study areas. This is the first report on the phenotypic and genotypic characterization of E. coli from mollusks from Santa Catarina and the Chesapeake Bay that should encourage studies focusing on comparison of isolates across countries.
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Affiliation(s)
- Marília Miotto
- Department of Food Science and TechnologyFederal University of Santa CatarinaFlorianopolisSanta CatarinaBrazil
| | - Sylvia A. Ossai
- Food Science and Technology ProgramUniversity of Maryland Eastern ShorePrincess AnneMaryland
| | - Joan E. Meredith
- Food Science and Technology ProgramUniversity of Maryland Eastern ShorePrincess AnneMaryland
| | - Clarissa Barretta
- Department of Food Science and TechnologyFederal University of Santa CatarinaFlorianopolisSanta CatarinaBrazil
| | - Airton Kist
- Laboratory of Computational and Applied Statistics, Department of Mathematics and StatisticsState University of Ponta GrossaPonta GrossaParanaBrazil
| | - Elane S. Prudencio
- Department of Food Science and TechnologyFederal University of Santa CatarinaFlorianopolisSanta CatarinaBrazil
| | - Cleide R. W. Vieira
- Department of Food Science and TechnologyFederal University of Santa CatarinaFlorianopolisSanta CatarinaBrazil
| | - Salina Parveen
- Food Science and Technology ProgramUniversity of Maryland Eastern ShorePrincess AnneMaryland
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10
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Li B, Liu H, Wang W. Multiplex real-time PCR assay for detection of Escherichia coli O157:H7 and screening for non-O157 Shiga toxin-producing E. coli. BMC Microbiol 2017; 17:215. [PMID: 29121863 PMCID: PMC5679507 DOI: 10.1186/s12866-017-1123-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/27/2017] [Indexed: 12/22/2022] Open
Abstract
Background Shiga toxin-producing Escherichia coli (STEC), including E. coli O157:H7, are responsible for numerous foodborne outbreaks annually worldwide. E. coli O157:H7, as well as pathogenic non-O157:H7 STECs, can cause life-threating complications, such as bloody diarrhea (hemolytic colitis) and hemolytic-uremic syndrome (HUS). Previously, we developed a real-time PCR assay to detect E. coli O157:H7 in foods by targeting a unique putative fimbriae protein Z3276. To extend the detection spectrum of the assay, we report a multiplex real-time PCR assay to specifically detect E. coli O157:H7 and screen for non-O157 STEC by targeting Z3276 and Shiga toxin genes (stx1 and stx2). Also, an internal amplification control (IAC) was incorporated into the assay to monitor the amplification efficiency. Methods The multiplex real-time PCR assay was developed using the Life Technology ABI 7500 System platform and the standard chemistry. The optimal amplification mixture of the assay contains 12.5 μl of 2 × Universal Master Mix (Life Technology), 200 nM forward and reverse primers, appropriate concentrations of four probes [(Z3276 (80 nM), stx1 (80 nM), stx2 (20 nM), and IAC (40 nM)], 2 μl of template DNA, and water (to make up to 25 μl in total volume). The amplification conditions of the assay were set as follows: activation of TaqMan at 95 °C for 10 min, then 40 cycles of denaturation at 95 °C for 10 s and annealing/extension at 60 °C for 60 s. Results The multiplex assay was optimized for amplification conditions. The limit of detection (LOD) for the multiplex assay was determined to be 200 fg of bacterial DNA, which is equivalent to 40 CFU per reaction which is similar to the LOD generated in single targeted PCRs. Inclusivity and exclusivity determinants were performed with 196 bacterial strains. All E. coli O157:H7 (n = 135) were detected as positive and all STEC strains (n = 33) were positive for stx1, or stx2, or stx1 and stx2 (Table 1). No cross reactivity was detected with Salmonella enterica, Shigella strains, or any other pathogenic strains tested. Conclusions A multiplex real-time PCR assay that can rapidly and simultaneously detect E. coli O157:H7 and screen for non-O157 STEC strains has been developed and assessed for efficacy. The inclusivity and exclusivity tests demonstrated high sensitivity and specificity of the multiplex real-time PCR assay. In addition, this multiplex assay was shown to be effective for the detection of E. coli O157:H7 from two common food matrices, beef and spinach, and may be applied for detection of E. coli O157:H7 and screening for non-O157 STEC strains from other food matrices as well.
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Affiliation(s)
- Baoguang Li
- Division of Molecular Biology, Center for Food Safety and Applied Nutrition, Food and Drug Administration, Laurel, MD, 20708, USA.
| | - Huanli Liu
- Branch of Microbiology, Office of Regulatory Affairs, Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Weimin Wang
- Division of Molecular Biology, Center for Food Safety and Applied Nutrition, Food and Drug Administration, Laurel, MD, 20708, USA
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11
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Rodriguez-Souto RR, Garrido-Maestu A, Pastoriza-Fontan A, Lozano-Leon A. Investigation and characterization of Shiga toxin-producingEscherichia colipresent in mussels from harvesting areas in Galician southern Rias (NW Spain). J Food Saf 2017. [DOI: 10.1111/jfs.12367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Alejandro Garrido-Maestu
- Department of Life Sciences, International Iberian Nanotechnology Laboratory, Nano4Food Unit; Food Quality and Safety Research Group, Av. Mestre José Veiga s/n 4715-330 Braga; Portugal
| | | | - Antonio Lozano-Leon
- Institute of Applied Microbiology - ASMECRUZ. Playa de Beluso s/n, Bueu PO 36939; Spain
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12
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Abia ALK, Ubomba-Jaswa E, Momba MNB. Occurrence of diarrhoeagenic Escherichia coli virulence genes in water and bed sediments of a river used by communities in Gauteng, South Africa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:15665-15674. [PMID: 27137190 DOI: 10.1007/s11356-016-6762-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
In most developing countries, especially in Southern Africa, little is known about the presence of diarrhoeagenic Escherichia coli (DEC) pathotypes in riverbed sediments. The present study sought to investigate the presence of DEC virulence genes in riverbed sediments of the Apies River, a river used by many communities in Gauteng, South Africa. Water and sediment samples were collected from the river between July and August 2013 (dry season) and also between January and February 2014 (wet season) following standard procedures. Isolation of E. coli was done using the Colilert®-18 Quanti-Tray® 2000 system. DNA was extracted from E. coli isolates using the InstaGene™ matrix from Bio-Rad and used as template DNA for real-time PCR. Water pH, temperature, dissolved oxygen, electrical conductivity and turbidity were measured in situ. Over 59 % of 180 samples analysed were positive for at least one of the seven DEC virulence genes investigated. The eaeA gene was the most isolated gene (29.44 %) while the ipaH gene the least isolated (8.33 %). The ipaH gene (p = 0.012) and the ST gene (stIa, p = 0.0001, and stIb, p = 0.019) were positively correlated with temperature. The detection of diarrhoeagenic E. coli virulence genes in the sediments of the Apies River shows that the sediments of this river might not only be a reservoir of faecal indicator bacteria like E. coli but also pathogenic strains of this bacterium. These organisms could represent a public health risk for poor communities relying on this water source for various purposes such as drinking and recreational use. There is therefore an urgent need to monitor these DEC pathotypes especially in areas without adequate water supplies.
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Affiliation(s)
- Akebe Luther King Abia
- Department of Environmental, Water and Earth Science, Tshwane University of Technology, Arcadia Campus, 175 Nelson Mandela Drive, Private Bag X 680, Pretoria, 0001, South Africa
| | - Eunice Ubomba-Jaswa
- Natural Resources and the Environment, CSIR, PO Box 395, Pretoria, 0001, South Africa.
| | - Maggy Ndombo Benteke Momba
- Department of Environmental, Water and Earth Science, Tshwane University of Technology, Arcadia Campus, 175 Nelson Mandela Drive, Private Bag X 680, Pretoria, 0001, South Africa.
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13
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Balière C, Rincé A, Blanco J, Dahbi G, Harel J, Vogeleer P, Giard JC, Mariani-Kurkdjian P, Gourmelon M. Prevalence and Characterization of Shiga Toxin-Producing and Enteropathogenic Escherichia coli in Shellfish-Harvesting Areas and Their Watersheds. Front Microbiol 2015; 6:1356. [PMID: 26648928 PMCID: PMC4664706 DOI: 10.3389/fmicb.2015.01356] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/16/2015] [Indexed: 11/13/2022] Open
Abstract
more strains formed a strong biofilm at 18 than at 30°C. Finally, more than 85% of analyzed strains were found to be sensitive to the 16 tested antibiotics. These data suggest the low risk of human infection by STEC if shellfish from these shellfish-harvesting areas were consumed.
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Affiliation(s)
- Charlotte Balière
- Laboratoire Santé Environnement et Microbiologie, Unité Santé, Génétique et Microbiologie des Mollusques, Département Ressources Biologiques et Environnement, Ifremer Plouzané, France
| | - Alain Rincé
- U2RM EA4655 Stress/Virulence, Normandie-Université, University of Caen Normandy Caen, France
| | - Jorge Blanco
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela Lugo, Spain
| | - Ghizlane Dahbi
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela Lugo, Spain
| | - Josée Harel
- Groupe de Recherche sur les Maladies Infectieuses du Porc, Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Centre de Recherche d'Infectiologie Porcine et Avicole, Université de Montréal Saint-Hyacinthe, QC, Canada
| | - Philippe Vogeleer
- Groupe de Recherche sur les Maladies Infectieuses du Porc, Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Centre de Recherche d'Infectiologie Porcine et Avicole, Université de Montréal Saint-Hyacinthe, QC, Canada
| | - Jean-Christophe Giard
- U2RM EA4655 Antibio-Résistance, Normandie-Université, University of Caen Normandy Caen, France
| | - Patricia Mariani-Kurkdjian
- Service de Microbiologie, CNR Associé Escherichia coli, AP-HP, Hôpital Robert-Debré Paris, France ; Infection, Antimicrobials, Modelling, Evolution, UMR 1137, INSERM Paris, France ; Infection, Antimicrobials, Modelling, Evolution, UMR 1137, Université Paris Diderot - Sorbonne Paris Cité Paris, France
| | - Michèle Gourmelon
- Laboratoire Santé Environnement et Microbiologie, Unité Santé, Génétique et Microbiologie des Mollusques, Département Ressources Biologiques et Environnement, Ifremer Plouzané, France
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