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Boxman ILA, Molin R, Persson S, Juréus A, Jansen CCC, Sosef NP, Le Guyader SF, Ollivier J, Summa M, Hautaniemi M, Suffredini E, Di Pasquale S, Myrmel M, Khatri M, Jamnikar-Ciglenecki U, Kusar D, Moor D, Butticaz L, Lowther JA, Walker DI, Stapleton T, Simonsson M, Dirks RAM. An international inter-laboratory study to compare digital PCR with ISO standardized qPCR assays for the detection of norovirus GI and GII in oyster tissue. Food Microbiol 2024; 120:104478. [PMID: 38431324 DOI: 10.1016/j.fm.2024.104478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 03/05/2024]
Abstract
An optimized digital RT-PCR (RT-dPCR) assay for the detection of human norovirus GI and GII RNA was compared with ISO 15216-conform quantitative real-time RT-PCR (RT-qPCR) assays in an interlaboratory study (ILS) among eight laboratories. A duplex GI/GII RT-dPCR assay, based on the ISO 15216-oligonucleotides, was used on a Bio-Rad QX200 platform by six laboratories. Adapted assays for Qiagen Qiacuity or ThermoFisher QuantStudio 3D were used by one laboratory each. The ILS comprised quantification of norovirus RNA in the absence of matrix and in oyster tissue samples. On average, results of the RT-dPCR assays were very similar to those obtained by RT-qPCR assays. The coefficient of variation (CV%) of norovirus GI results was, however, much lower for RT-dPCR than for RT-qPCR in intra-laboratory replicates (eight runs) and between the eight laboratories. The CV% of norovirus GII results was in the same range for both detection formats. Had in-house prepared dsDNA standards been used, the CV% of norovirus GII could have been in favor of the RT-dPCR assay. The ratio between RT-dPCR and RT-qPCR results varied per laboratory, despite using the distributed RT-qPCR dsDNA standards. The study indicates that the RT-dPCR assay is likely to increase uniformity of quantitative results between laboratories.
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Affiliation(s)
- Ingeborg L A Boxman
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, Wageningen, the Netherlands.
| | - Ramia Molin
- European Union Reference Laboratory for Foodborne Viruses, Swedish Food Agency, Uppsala, Sweden.
| | - Sofia Persson
- European Union Reference Laboratory for Foodborne Viruses, Swedish Food Agency, Uppsala, Sweden.
| | - Anna Juréus
- European Union Reference Laboratory for Foodborne Viruses, Swedish Food Agency, Uppsala, Sweden.
| | - Claudia C C Jansen
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, Wageningen, the Netherlands.
| | - Nils P Sosef
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, Wageningen, the Netherlands.
| | - Soizick F Le Guyader
- French Research Institute for Exploitation of the Sea (Ifremer) - Laboratoire de Santé, Environnement et Microbiologie, Nantes, France.
| | - Joanna Ollivier
- French Research Institute for Exploitation of the Sea (Ifremer) - Laboratoire de Santé, Environnement et Microbiologie, Nantes, France.
| | | | | | - Elisabetta Suffredini
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy.
| | - Simona Di Pasquale
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy.
| | - Mette Myrmel
- Norwegian University of Life Sciences (NMBU), Faculty of Veterinary Medicine, Virology Unit, Ås, Norway.
| | - Mamata Khatri
- Norwegian University of Life Sciences (NMBU), Faculty of Veterinary Medicine, Virology Unit, Ås, Norway.
| | - Urska Jamnikar-Ciglenecki
- University of Ljubljana Veterinary Faculty, Institute of Food Safety, Feed and Environment, Ljubljana, Slovenia.
| | - Darja Kusar
- University of Ljubljana Veterinary Faculty, Institute of Microbiology and Parasitology, Ljubljana, Slovenia.
| | - Dominik Moor
- Federal Institute of Metrology METAS, Biological Analysis and References Laboratory, Bern, Switzerland.
| | - Lisa Butticaz
- Federal Institute of Metrology METAS, Biological Analysis and References Laboratory, Bern, Switzerland.
| | - James A Lowther
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth, United Kingdom.
| | - David I Walker
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth, United Kingdom.
| | - Tina Stapleton
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth, United Kingdom.
| | - Magnus Simonsson
- European Union Reference Laboratory for Foodborne Viruses, Swedish Food Agency, Uppsala, Sweden.
| | - René A M Dirks
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, Wageningen, the Netherlands.
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Shahrajabian MH, Sun W. The Significance and Importance of dPCR, qPCR, and SYBR Green PCR Kit in the Detection of Numerous Diseases. Curr Pharm Des 2024; 30:169-179. [PMID: 38243947 DOI: 10.2174/0113816128276560231218090436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/27/2023] [Accepted: 11/07/2023] [Indexed: 01/22/2024]
Abstract
Digital PCR (dPCR) is the latest technique that has become commercially accessible for various types of research. This method uses Taq polymerase in a standard polymerase chain reaction (PCR) to amplify a target DNA fragment from a complex sample, like quantitative PCR (qPCR) and droplet digital PCR (dd- PCR). ddPCR may facilitate microRNA (miRNA) measurement, particularly in liquid biopsy, because it has been proven to be more effective and sensitive, and in this method, ddPCR can provide an unprecedented chance for deoxyribonucleic acid (DNA) methylation research because of its capability to increase sensitivity and precision over conventional PCR-based methods. qPCR has also been found to be a valuable standard technique to measure both copy DNA (cDNA) and genomic DNA (gDNA) levels, although the finding data can be significantly variable and non-reproducible without relevant validation and verification of both primers and samples. The SYBR green quantitative real-time PCR (qPCR) method has been reported as an appropriate technique for quantitative detection and species discrimination, and has been applied profitably in different experiments to determine, quantify, and discriminate species. Although both TaqMan qRT-PCR and SYBR green qRT-PCR are sensitive and rapid, the SYBR green qRT-PCR assay is easy and the TaqMan qRT-PCR assay is specific but expensive due to the probe required. This review aimed to introduce dPCR, qPCR, SYBR green PCR kit, and digital PCR, compare them, and also introduce their advantages in the detection of different diseases.
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Affiliation(s)
- Mohamad Hesam Shahrajabian
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100086, China
| | - Wenli Sun
- National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100086, China
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3
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Desdouits M, Reynaud Y, Philippe C, Guyader FSL. A Comprehensive Review for the Surveillance of Human Pathogenic Microorganisms in Shellfish. Microorganisms 2023; 11:2218. [PMID: 37764063 PMCID: PMC10537662 DOI: 10.3390/microorganisms11092218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Bivalve molluscan shellfish have been consumed for centuries. Being filter feeders, they may bioaccumulate some microorganisms present in coastal water, either naturally or through the discharge of human or animal sewage. Despite regulations set up to avoid microbiological contamination in shellfish, human outbreaks still occur. After providing an overview showing their implication in disease, this review aims to highlight the diversity of the bacteria or enteric viruses detected in shellfish species, including emerging pathogens. After a critical discussion of the available methods and their limitations, we address the interest of technological developments using genomics to anticipate the emergence of pathogens. In the coming years, further research needs to be performed and methods need to be developed in order to design the future of surveillance and to help risk assessment studies, with the ultimate objective of protecting consumers and enhancing the microbial safety of bivalve molluscan shellfish as a healthy food.
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Affiliation(s)
| | | | | | - Françoise S. Le Guyader
- Ifremer, Unité Microbiologie Aliment Santé et Environnement, RBE/LSEM, 44311 Nantes, France; (M.D.); (Y.R.); (C.P.)
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4
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Larocque É, Lévesque V, Lambert D. Crystal digital RT-PCR for the detection and quantification of norovirus and hepatitis A virus RNA in frozen raspberries. Int J Food Microbiol 2022; 380:109884. [PMID: 36055105 DOI: 10.1016/j.ijfoodmicro.2022.109884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 10/31/2022]
Abstract
Berries are important vehicles for norovirus (NoV) and hepatitis A virus (HAV) foodborne outbreaks. Sensitive and quantitative detection of these viruses in food samples currently relies on RT-qPCR, but remains challenging due to their low concentration and the presence of RT-qPCR inhibitors. Moreover, quantification requires a standard curve. In this study, crystal digital RT-PCR (RT-cdPCR) assays were adapted from RT-qPCR sets of primers and probe currently used in our diagnostic laboratory for the detection and precise quantification of norovirus genogroups I and II (NoV GI, GII) and hepatitis A virus (HAV) RNA in frozen raspberry samples. We selected assay conditions based on optimal separation of positive and negative droplets, and peak resolution. Using virus-specific in vitro RNA transcripts diluted in raspberry RNA extracts, we showed that all three RT-cdPCR assays were sensitive, and we estimated the 95 % detection limit at 9 copies per RT-cdPCR reaction for NoV GI, 3 for NoV GII, and 14 for HAV. Serial dilutions of the RNA transcripts showed excellent linearity over a range of four orders of magnitude. We achieved precise quantification (CV ≤ 35 %) of the RNA transcripts between runs down to 15-145 copies per reaction for NoV GI, <20 for NoV GII, and < 15 for HAV. The three RT-cdPCR assays also proved to be tolerant to inhibitors from frozen raspberries, although not as tolerant as the RT-qPCR assays in the case of NoV GI and HAV. We further evaluated the assays with inoculated frozen raspberry samples and compared their performance to that of the RT-qPCR assays. As compared to the corresponding RT-qPCR assays, the NoV GI and HAV RT-cdPCR assays showed a decreased qualitative sensitivity, while the NoV GII RT-cdPCR assay had an increased sensitivity. As for quantification, the NoV GI and NoV GII RT-cdPCR assays produced similar estimates of RNA copy number than their respective RT-qPCR assays, whereas for HAV, the RT-cdPCR assay produced lower estimates than the RT-qPCR assay. However, all the RT-cdPCR assays provided more precise quantitative measurements at low levels of contamination than the RT-qPCR assays. In conclusion, the potential of the RT-cdPCR assays in this study to detect viral RNA from frozen raspberries varied according to assay, but these RT-cdPCR assays should be considered for precise absolute quantification in difficult matrices such as frozen raspberries.
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Affiliation(s)
- Émilie Larocque
- Food Virology National Reference Centre, St. Hyacinthe Laboratory, Canadian Food Inspection Agency (CFIA), 3400 Casavant Boulevard West, St. Hyacinthe, QC J2S 8E3, Canada.
| | - Valérie Lévesque
- Food Virology National Reference Centre, St. Hyacinthe Laboratory, Canadian Food Inspection Agency (CFIA), 3400 Casavant Boulevard West, St. Hyacinthe, QC J2S 8E3, Canada
| | - Dominic Lambert
- Food Virology National Reference Centre, St. Hyacinthe Laboratory, Canadian Food Inspection Agency (CFIA), 3400 Casavant Boulevard West, St. Hyacinthe, QC J2S 8E3, Canada
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5
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Polo D, Quintela-Baluja M, Corbishley A, Jones DL, Singer AC, Graham DW, Romalde JL. Making waves: Wastewater-based epidemiology for COVID-19 - approaches and challenges for surveillance and prediction. WATER RESEARCH 2020; 186:116404. [PMID: 32942178 PMCID: PMC7480445 DOI: 10.1016/j.watres.2020.116404] [Citation(s) in RCA: 197] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/13/2020] [Accepted: 09/06/2020] [Indexed: 05/17/2023]
Abstract
The presence of SARS-CoV-2 in the feces of infected patients and wastewater has drawn attention, not only to the possibility of fecal-oral transmission but also to the use of wastewater as an epidemiological tool. The COVID-19 pandemic has highlighted problems in evaluating the epidemiological scope of the disease using classical surveillance approaches, due to a lack of diagnostic capacity, and their application to only a small proportion of the population. As in previous pandemics, statistics, particularly the proportion of the population infected, are believed to be widely underestimated. Furthermore, analysis of only clinical samples cannot predict outbreaks in a timely manner or easily capture asymptomatic carriers. Threfore, community-scale surveillance, including wastewater-based epidemiology, can bridge the broader community and the clinic, becoming a valuable indirect epidemiological prediction tool for SARS-CoV-2 and other pandemic viruses. This article summarizes current knowledge and discusses the critical factors for implementing wastewater-based epidemiology of COVID-19.
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Affiliation(s)
- David Polo
- Department of Microbiology and Parasitology, CIBUS-Facultade de Bioloxía & Institute CRETUS, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain.
| | - Marcos Quintela-Baluja
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Alexander Corbishley
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, United Kingdom
| | - Davey L Jones
- Environment Centre Wales, Bangor University, Bangor, Gwynedd, LL57 2UW, United Kingdom; UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
| | - Andrew C Singer
- UK Centre for Ecology & Hydrology. Wallingford, Oxfordshire, OX10 8BB, United Kingdom
| | - David W Graham
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Jesús L Romalde
- Department of Microbiology and Parasitology, CIBUS-Facultade de Bioloxía & Institute CRETUS, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain.
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6
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Rocchigiani AM, Tilocca MG, Portanti O, Vodret B, Bechere R, Di Domenico M, Savini G, Lorusso A, Puggioni G. Development of a Digital RT-PCR Method for Absolute Quantification of Bluetongue Virus in Field Samples. Front Vet Sci 2020; 7:170. [PMID: 32373633 PMCID: PMC7186476 DOI: 10.3389/fvets.2020.00170] [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: 11/29/2019] [Accepted: 03/11/2020] [Indexed: 11/24/2022] Open
Abstract
Bluetongue (BT) is a major Office International des Epizooties (OIE)-listed disease of wild and domestic ruminants caused by several serotypes of Bluetongue virus (BTV), a virus with a segmented dsRNA genome belonging to the family Reoviridae, genus Orbivirus. BTV is transmitted through the bites of Culicoides midges. The aim of this study was to develop a new method for quantification of BTV Seg-10 by droplet digital RT-PCR (RTdd-PCR), using nucleic acids purified from complex matrices such as blood, tissues, and midges, that notoriously contain strong PCR inhibitors. First, RTdd-PCR was optimized by using RNAs purified from serially 10-fold dilutions of a BTV-1 isolate (105.43TCID50/ml up to 10−0.57 TCID50/ml) and from the same dilutions spiked into fresh ovine EDTA-blood and spleen homogenate. The method showed a good degree of linearity (R2 ≥ 0.995). The limit of detection (LoD) and the limit of quantification (LoQ) established were 10−0.67TCID50/ml (0.72 copies/μl) and 100.03TCID50/ml (3.05 copies/μl) of BTV-1, respectively. Second, the newly developed test was compared, using the same set of biological samples, to the quantitative RT-PCR (RT-qPCR) detecting Seg-10 assay widely used for the molecular diagnosis of BTV from field samples. Results showed a difference mean of 0.30 log between the two assays with these samples (p < 0.05). Anyway, the analysis of correlation demonstrated that both assays provided similar measurements with a very close agreement between the systems.
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Affiliation(s)
- Angela M Rocchigiani
- Department of Sanità Animale, Istituto Zooprofilattico Sperimentale Della Sardegna, Sassari, Italy
| | - Maria G Tilocca
- Department of Sanità Animale, Istituto Zooprofilattico Sperimentale Della Sardegna, Sassari, Italy
| | - Ottavio Portanti
- OIE Reference Laboratory for Bluetongue, Istituto Zooprofilattico Sperimentale Abruzzo e Molise, Teramo, Italy
| | - Bruna Vodret
- Department of Sanità Animale, Istituto Zooprofilattico Sperimentale Della Sardegna, Sassari, Italy
| | - Roberto Bechere
- Department of Sanità Animale, Istituto Zooprofilattico Sperimentale Della Sardegna, Sassari, Italy
| | - Marco Di Domenico
- OIE Reference Laboratory for Bluetongue, Istituto Zooprofilattico Sperimentale Abruzzo e Molise, Teramo, Italy
| | - Giovanni Savini
- OIE Reference Laboratory for Bluetongue, Istituto Zooprofilattico Sperimentale Abruzzo e Molise, Teramo, Italy
| | - Alessio Lorusso
- OIE Reference Laboratory for Bluetongue, Istituto Zooprofilattico Sperimentale Abruzzo e Molise, Teramo, Italy
| | - Giantonella Puggioni
- Department of Sanità Animale, Istituto Zooprofilattico Sperimentale Della Sardegna, Sassari, Italy
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7
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Monteiro S, Smigic N, Rajkovic A, Santos R. Efficiency of PEG secondary concentration and PCR for the simultaneous concentration and quantification of foodborne bacteria, viruses and protozoa. FEMS Microbiol Lett 2020; 367:5841523. [DOI: 10.1093/femsle/fnaa085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/19/2020] [Indexed: 11/13/2022] Open
Abstract
ABSTRACT
Fresh fruits are a potential source of many different pathogens, including bacteria, enteric viruses and protozoa that may pose serious health risks. The consumption of raspberries has been widely associated with large foodborne outbreaks and because of the low concentration at which most of these pathogens are found, sensitive and accurate detection methods are required. Methods that would allow for an accurate and sensitive simultaneous elution and concentration of the different classes of pathogens would decrease the time for analysis, the costs associated and the expertise necessary. In this study we explored the use of polyethylene glycol (PEG) secondary concentration to simultaneously concentrate bacteria, enteric viruses and protozoa from raspberries. PEG secondary concentration showed good recovery rates for all the organisms tested. This work indicates that PEG secondary concentration followed by quantitative (Reverse Transcription) Polymerase Chain Reaction (q(RT)PCR) may be a relevant alternative to standardized methods for the simultaneous concentration of bacteria, enteric viruses and protozoa.
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Affiliation(s)
- Silvia Monteiro
- Laboratorio Analises, Instituto Superior Técnico, University of Lisbon, Lisbon, Portugal
| | - Nada Smigic
- Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Andreja Rajkovic
- Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
- Laboratory of Food Microbiology and Food Preservation, Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Ricardo Santos
- Laboratorio Analises, Instituto Superior Técnico, University of Lisbon, Lisbon, Portugal
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Ibrahim C, Hammami S, Pothier P, Khelifi N, Hassen A. The performance of biological and tertiary wastewater treatment procedures for rotaviruses A removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5718-5729. [PMID: 31177419 PMCID: PMC7223008 DOI: 10.1007/s11356-019-05487-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 05/14/2019] [Indexed: 05/19/2023]
Abstract
Enteric viruses, generally found in sewage, are recognized as the main cause of waterborne and foodborne public health outbreaks. Among leading enteric viruses, the Rotavirus A (RVA) detection in wastewater appeared to be a novel approach to monitor the emergence of these viruses in some countries where the viral gastroenteritis surveillance is almost absent such as in Tunisia. The RVA detection and quantification in an industrial sewage purification plant of Charguia I (Tunis, Tunisia) were achieved to evaluate the performance of activated sludge procedures coupled to a macrofiltration monolamp ultraviolet irradiation type C (UV-C254) disinfection reactor. This UV-C254 system was preceded by a fiberglass cartridge filter system with an average porosity of 45 μm to clarify the water and thus increase its UV transmittance. A total of 140 composite sewage samples was collected from this line of treatment and analyzed for RVA detection. The detection and the viral load quantification of RVA were performed using real-time reverse transcription polymerase chain reaction (RT-PCR). The virological results showed in general that RVA were detected at high frequency of 98% (137/140). In fact, the RVA detection rates at the exit of the two studied wastewater treatment were about 100% at the exit of the activated sludge procedure. It means that all wastewater sampled at this last step of treatment was positive for RVA detection. On the other hand, 92.5% of the wastewater samples taken at the exit of the monolamp UV-C254 reactor were positive for the RVA. However, the RVA quantification results expressed as viral load showed a significant reduction in the means of RVA viral loads at the exit of the biological activated sludge procedure and the tertiary UV-C254 treatment, showing in general an improved treated wastewater virological quality. Therefore, the RVA load removal rates recorded at the two successive stages of treatment, the activated sludge and the UV-C254 treatment, were around 85% and 73%, respectively, as compared to the one with 100% registered for the raw wastewater. In addition, good physical-chemical and bacteriological qualities of the treated sewage were found at the exit of the two considered wastewater treatment procedures. The present investigation represents the first Tunisian environmental report showing the good effectiveness and performance of the biological and the tertiary treatments for RVA removal. Therefore, an improved and an optimized tertiary disinfection treatment was needed since it could be a good means for getting better viral water quality and for minimizing the transmission and dissemination of human infectious viral diseases.
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Affiliation(s)
- Chourouk Ibrahim
- Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Centre of Research and Water Technologies (CERTE), 8020 Techno Park of Borj Cédria, Borj Cédria, Tunisia
- Faculty of Mathematical, Physical and Natural Sciences of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia
| | - Salah Hammami
- National School of Veterinary Medicine at Sidi-Thabet, IRESA, University of Manouba, 2020 Tunis, Tunisia
| | - Pierre Pothier
- National Reference Centre for Enteric Viruses, Laboratory of Virology, University Hospital of Dijon, 21070 Dijon, France
| | - Nesserine Khelifi
- Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Centre of Research and Water Technologies (CERTE), 8020 Techno Park of Borj Cédria, Borj Cédria, Tunisia
| | - Abdennaceur Hassen
- Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Centre of Research and Water Technologies (CERTE), 8020 Techno Park of Borj Cédria, Borj Cédria, Tunisia
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9
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Malik YS, Verma AK, Kumar N, Touil N, Karthik K, Tiwari R, Bora DP, Dhama K, Ghosh S, Hemida MG, Abdel-Moneim AS, Bányai K, Vlasova AN, Kobayashi N, Singh RK. Advances in Diagnostic Approaches for Viral Etiologies of Diarrhea: From the Lab to the Field. Front Microbiol 2019; 10:1957. [PMID: 31608017 PMCID: PMC6758846 DOI: 10.3389/fmicb.2019.01957] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/08/2019] [Indexed: 12/25/2022] Open
Abstract
The applications of correct diagnostic approaches play a decisive role in timely containment of infectious diseases spread and mitigation of public health risks. Nevertheless, there is a need to update the diagnostics regularly to capture the new, emergent, and highly divergent viruses. Acute gastroenteritis of viral origin has been identified as a significant cause of mortality across the globe, with the more serious consequences seen at the extremes of age groups (young and elderly) and immune-compromised individuals. Therefore, significant advancements and efforts have been put in the development of enteric virus diagnostics to meet the WHO ASSURED criteria as a benchmark over the years. The Enzyme-Linked Immunosorbent (ELISA) and Polymerase Chain Reaction (PCR) are the basic assays that provided the platform for development of several efficient diagnostics such as real-time RT-PCR, loop-mediated isothermal amplification (LAMP), polymerase spiral reaction (PSR), biosensors, microarrays and next generation sequencing. Herein, we describe and discuss the applications of these advanced technologies in context to enteric virus detection by delineating their features, advantages and limitations.
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Affiliation(s)
- Yashpal Singh Malik
- Division of Biological Standardization, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, India
| | - Atul Kumar Verma
- Division of Biological Standardization, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, India
| | - Naveen Kumar
- ICAR-National Institute of High Security Animal Diseases, OIE Reference Laboratory for Avian Influenza, Bhopal, India
| | - Nadia Touil
- Laboratoire de Biosécurité et de Recherche, Hôpital Militaire d’Instruction Mohammed V, Rabat, Morocco
| | - Kumaragurubaran Karthik
- Central University Laboratory, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
| | - Ruchi Tiwari
- Department of Veterinary Microbiology & Immunology, College of Veterinary Sciences, DUVASU, Mathura, India
| | - Durlav Prasad Bora
- Department of Microbiology, College of Veterinary Science, Assam Agricultural University, Guwahati, India
| | - Kuldeep Dhama
- Division of Pathology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, India
| | - Souvik Ghosh
- Department of Biomedical Sciences, One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | - Maged Gomaa Hemida
- Department of Microbiology and Parasitology, College of Veterinary Medicine, King Faisal University, Al-Hufuf, Saudi Arabia
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Ahmed S. Abdel-Moneim
- Department of Microbiology, College of Medicine, Taif University, Taif, Saudi Arabia
- Department of Virology, Faculty of Veterinary Medicine, Beni Suef University, Beni Suef, Egypt
| | - Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Anastasia N. Vlasova
- Food Animal Health Research Program, Department of Veterinary Preventive Medicine, CFAES, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH, United States
| | | | - Raj Kumar Singh
- Division of Biological Standardization, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, India
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10
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Hamza IA, Bibby K. Critical issues in application of molecular methods to environmental virology. J Virol Methods 2019; 266:11-24. [PMID: 30659861 DOI: 10.1016/j.jviromet.2019.01.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 12/16/2022]
Abstract
Waterborne diseases have significant public health and socioeconomic implications worldwide. Many viral pathogens are commonly associated with water-related diseases, namely enteric viruses. Also, novel recently discovered human-associated viruses have been shown to be a causative agent of gastroenteritis or other clinical symptoms. A wide range of analytical methods is available for virus detection in environmental water samples. Viral isolation is historically carried out via propagation on permissive cell lines; however, some enteric viruses are difficult or not able to propagate on existing cell lines. Real-time polymerase chain reaction (qPCR) screening of viral nucleic acid is routinely used to investigate virus contamination in water due to the high sensitivity and specificity. Additionally, the introduction of metagenomic approaches into environmental virology has facilitated the discovery of viruses that cannot be grown in cell culture. This review (i) highlights the applications of molecular techniques in environmental virology such as PCR and its modifications to overcome the critical issues associated with the inability to discriminate between infectious viruses and nonviable viruses, (ii) outlines the strengths and weaknesses of Nucleic Acid Sequence Based Amplification (NASBA) and microarray, (iii) discusses the role of digital PCR as an emerging water quality monitoring assay and its advantages over qPCR, (iv) addresses the viral metagenomics in terms of detecting emerging viral pathogens and diversity in aquatic environment. Indeed, there are many challenges for selecting methods to detect classic and emerging viruses in environmental samples. While the existing techniques have revealed the importance and diversity of viruses in the water environment, further developments are necessary to enable more rapid and accurate methodologies for viral water quality monitoring and regulation.
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Affiliation(s)
- Ibrahim Ahmed Hamza
- Department of Water Pollution Research, National Research Centre, Cairo, Egypt.
| | - Kyle Bibby
- Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, USA
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