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Li FY, Guo YH, Sun ZL, Liu H, Zhao MC, Cui J, Jiang Y, Shen XX, Ma XJ, Feng ZS. Rapid two-stage amplification in a single tube for simultaneous detection of norovirus GII and group a rotavirus. J Clin Lab Anal 2023; 37:e24858. [PMID: 36916770 PMCID: PMC10098066 DOI: 10.1002/jcla.24858] [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: 10/11/2022] [Revised: 02/06/2023] [Accepted: 03/01/2023] [Indexed: 03/16/2023] Open
Abstract
The most prevalent viruses currently causing diarrhea are norovirus and rotavirus, and rapid and sensitive detection methods are essential for the early diagnosis of disease. The purpose of this study was to establish a sensitive single-tube two-stage nucleic acid amplification method-reverse transcription recombinase-assisted PCR (RT-RAP)-for simultaneous detection of norovirus GII and group A Rotavirus, with the first stage consisting of isothermal reverse transcription recombinase-aided amplification (RT-RAA) and the second stage consisting of qPCR (quantitative PCR). RT-RAP is more sensitive than either RT-RAA or qRT-PCR (quantitative RT-PCR) alone. And the addition of a barrier that can be disassembled after heating enabled the detection of samples within 1 h in a single closed tube. Sensitivity was 10 copies/reaction of norovirus (Novs) GII and group A rotavirus (RVA). In parallel, two hundred fecal specimens were used to evaluate the method and compare it with a commercial fluorescent quantitative RT-PCR. The data showed kappa values of 0.957 and 0.98 (p < 0.05) for detecting Novs GII and RVA by the two methods, indicating the potential of the newly established assay to be applied to clinical and laboratory testing.
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Affiliation(s)
- Feng-Yu Li
- Hebei Medical University, Shijiazhuang, Hebei, China.,Hebei General Hospital, Shijiazhuang, Hebei, China.,NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ying-Hui Guo
- Department of Clinical Laboratory, Children's Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - Zhen-Lu Sun
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hong Liu
- Shandong Provincial Research Center for Bioinformatic Engineering and Technique, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong, China
| | - Meng-Chuan Zhao
- Department of Clinical Laboratory, Children's Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - Jia Cui
- Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Yue Jiang
- The Third Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Xin-Xin Shen
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xue-Jun Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhi-Shan Feng
- Hebei Medical University, Shijiazhuang, Hebei, China.,Hebei General Hospital, Shijiazhuang, Hebei, China.,Hebei Medical Laboratory Clinical Medical Research Center, Shijiazhuang City, Hebei Province, China.,Hebei Key Laboratory of Molecular Medicine, Shijiazhuang City, Hebei Province, China
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Oteiza JM, Prez VE, Pereyra D, Jaureguiberry MV, Sánchez G, Sant'Ana AS, Barril PA. Occurrence of Norovirus, Rotavirus, Hepatitis a Virus, and Enterovirus in Berries in Argentina. FOOD AND ENVIRONMENTAL VIROLOGY 2022; 14:170-177. [PMID: 35305250 DOI: 10.1007/s12560-022-09518-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Berries have been implicated as the probable vehicle of infection in multiple outbreaks of norovirus and hepatitis A virus (HAV). These foods often receive minimal or no processing and may be exposed to virus contamination at each stage of production. In an increasingly globalized world, berries have a wide distribution and can give rise to the spread of diseases in distant parts of the world. With the aim of describing the virological quality of the berries cultivated in Argentina, a total of 184 soft fruits of different varieties (strawberries, blueberries, raspberries, blackberries, currants, pomegranate arils, cassis, and elder) were collected during the periods 2016-2018 and 2020. Viral particles were eluted and concentrated by polyethylene glycol precipitation according to ISO 15216-2:2019 guidelines. Genome detection of norovirus (NoV) genogroups I (GI) and II (GII), HAV, rotavirus, and enterovirus was performed by real-time RT-PCR with TaqMan probes. Positive samples were amplified by conventional RT-PCR and the amplicons were purified and sequenced in both directions. Phylogenetic analysis was performed using the Neighbor-Joining method based on the evolutionary model Kimura-2-parameters. NoV GII.6 was detected in 1/184 (0.5%) of the soft fruits, corresponding to a raspberry sample obtained during the fall of 2017. No presence of other human enteric viruses was found in the other berries analyzed. The collected data are the first in Argentina in relation to the prevalence of enteric viruses in berries and is useful as reference data for a risk assessment of soft fruits as vehicles of foodborne pathogenic viruses.
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Affiliation(s)
- Juan Martín Oteiza
- Laboratorio de Microbiología de los Alimentos, Centro de Investigación y Asistencia Técnica a la Industria (CIATI), Expedicionarios del Desierto 1310, 8309, Centenario, Neuquen, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Verónica Emilse Prez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
- Laboratorio de Gastroenteritis Virales, Instituto de Virología "Dr. J. M. Vanella", Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enfermera Gordillo Gómez s/n, Ciudad Universitaria, 5016, Córdoba, Argentina.
- Laboratorio de Gastroenteritis Virales, Instituto de Virología "Dr. J. M. Vanella", Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enfermera Gordillo Gómez s/n, Ciudad Universitaria, 5000, Córdoba, Argentina.
| | - Dayana Pereyra
- Laboratorio de Microbiología de los Alimentos, Centro de Investigación y Asistencia Técnica a la Industria (CIATI), Expedicionarios del Desierto 1310, 8309, Centenario, Neuquen, Argentina
| | - María Virginia Jaureguiberry
- Laboratorio de Microbiología de los Alimentos, Centro de Investigación y Asistencia Técnica a la Industria (CIATI), Expedicionarios del Desierto 1310, 8309, Centenario, Neuquen, Argentina
| | - Gloria Sánchez
- Departamento de Tecnologías de Conservación y Seguridad Alimentaria, Instituto de Agroquímica y Tecnología de Alimentos - Consejo Superior de Investigaciones Científicas (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Patricia Angélica Barril
- Laboratorio de Microbiología de los Alimentos, Centro de Investigación y Asistencia Técnica a la Industria (CIATI), Expedicionarios del Desierto 1310, 8309, Centenario, Neuquen, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Raymond P, Paul S, Perron A, Deschênes L, Hara K. Extraction of human noroviruses from leafy greens and fresh herbs using magnetic silica beads. Food Microbiol 2021; 99:103827. [PMID: 34119112 DOI: 10.1016/j.fm.2021.103827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/14/2021] [Accepted: 05/06/2021] [Indexed: 11/30/2022]
Abstract
Consumption of leafy greens and to a lesser extent fresh herbs has been associated with several foodborne outbreaks including human norovirus (HuNoV). However, the extraction and detection of viruses from these matrices present multiple challenges such as low recovery yields and relatively high PCR inhibition. A new magnetic silica bead based (MSB) extraction protocol was developed and used to recover norovirus from leafy greens and fresh herbs. The performance results were compared to the ISO 15216-1:2017 standard. The HuNoV GII.4 and GI.5 recovery yields from spiked lettuce using the MSB extraction protocol range from 33 to 82%. There was a good correlation between murine norovirus (MNV) and HuNoV recovery yields from fresh herbs and leafy greens. No reverse-transcriptase quantitative polymerase chain reaction (RT-qPCR) inhibition was detected from leafy green extracts using the MSB methodology. The selected commercial RT-qPCR detection kit had a major impact on RT-qPCR inhibition levels detected in the ISO 15216-1:2017 RNA extracts. RNase treatment was used to estimate genome recovery from HuNoV with intact capsids. This treatment resulted in similar HuNoV and MNV recovery yields. Between 2019 and 2020, the MSB protocol was used to conduct a survey of HuNoV in domestic and imported leafy greens and fresh herbs sold at retail in Canada. All of the 280 samples tested were negative. Overall, the use of MSB was shown to be an efficient approach to recover HuNoV from leafy greens and certain types of fresh herbs and to conduct surveys.
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Affiliation(s)
- Philippe Raymond
- Canadian Food Inspection Laboratory (CFIA), Saint-Hyacinthe Laboratory - Food Virology, St.Hyacinthe, Québec, Canada.
| | - Sylvianne Paul
- Canadian Food Inspection Laboratory (CFIA), Saint-Hyacinthe Laboratory - Food Virology, St.Hyacinthe, Québec, Canada
| | - André Perron
- Canadian Food Inspection Laboratory (CFIA), Saint-Hyacinthe Laboratory - Food Virology, St.Hyacinthe, Québec, Canada
| | - Louise Deschênes
- Agriculture and Agri-Food Canada (AAFC), Saint-Hyacinthe Research and Development Centre, St.Hyacinthe, Québec, Canada
| | - Kenji Hara
- Canadian Food Inspection Laboratory (CFIA), Burnaby Laboratory - Microbiology and Virology, Burnaby, British-Columbia, Canada
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Butot S, Galbusera L, Putallaz T, Zuber S. Electron Beam Susceptibility of Enteric Viruses and Surrogate Organisms on Fruit, Seed and Spice Matrices. FOOD AND ENVIRONMENTAL VIROLOGY 2021; 13:218-228. [PMID: 33566336 PMCID: PMC8116251 DOI: 10.1007/s12560-021-09463-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study was to use high-energy electron beam (HEEB) treatments to find surrogate microorganisms for enteric viruses and to use the selected surrogates as proof of concept to investigate low-energy electron beam (LEEB) treatments for enteric virus inactivation at industrial scale on frozen blueberries. Six food matrices inoculated with HAV (hepatitis A virus), MNV S99 (murine norovirus), bacteriophages MS2 and Qβ, and Geobacillus stearothermophilus spores were treated with HEEB at 10 MeV using 4, 8 and 16 kGy doses. G. stearothermophilus spores showed the highest inactivation on all matrices except on raisins, with a dose-dependent effect. HAV reached the maximum measurable log10 reduction (> 3.2 log10) when treated at 16 kGy on raisins. MNV showed the highest resistance of all tested microorganisms, independent of the dose, except on frozen blueberries. On frozen blueberries, freeze-dried raspberries, sesame seeds and black peppercorns, HAV showed a mean inactivation level in between those of MS2 and G. stearothermophilus. Based on this, we selected both surrogate organisms as first approximation to estimate HAV inactivation on frozen blueberries during LEEB treatment at 250 keV using 16 kGy. Reductions of 3.1 and 1.3 log10 were measured for G. stearothermophilus spores and MS2, respectively, suggesting that a minimum reduction of 1.4 log10 can be expected for HAV under the same conditions.
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Affiliation(s)
- Sophie Butot
- Nestlé Research, Institute of Food Safety and Analytical Science, 1000, 26, Lausanne, Switzerland
| | - Luca Galbusera
- Nestlé Research, Institute of Food Safety and Analytical Science, 1000, 26, Lausanne, Switzerland
| | - Thierry Putallaz
- Nestlé Research, Institute of Food Safety and Analytical Science, 1000, 26, Lausanne, Switzerland
| | - Sophie Zuber
- Nestlé Research, Institute of Food Safety and Analytical Science, 1000, 26, Lausanne, Switzerland.
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Li D, Butot S, Zuber S, Uyttendaele M. Monitoring of foodborne viruses in berries and considerations on the use of RT-PCR methods in surveillance. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.02.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Randazzo W, D'Souza DH, Sanchez G. Norovirus: The Burden of the Unknown. ADVANCES IN FOOD AND NUTRITION RESEARCH 2018; 86:13-53. [PMID: 30077220 DOI: 10.1016/bs.afnr.2018.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human noroviruses (HNoVs) are primarily transmitted by the fecal-oral route, either by person-to-person contact, or by ingestion of contaminated food or water as well as by aerosolization. Moreover, HNoVs significantly contribute to foodborne diseases being the causative agent of one-fifth of acute gastroenteritis worldwide. As a consequence of globalization, transnational outbreaks of foodborne infections are reported with increasing frequency. Therefore, in this review, state-of-the-art information regarding molecular procedures for human norovirus detection in food as well common food processing technologies have been summarized. Besides, the purpose of this chapter is to consolidate basic information on various aspects of HNoVs and to summarize food processing technologies that can potentially be applied in the food industry.
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Affiliation(s)
- Walter Randazzo
- IATA-CSIC, Valencia, Spain; University of Valencia, Valencia, Spain
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Summa M, Maunula L. Rapid Detection of Human Norovirus in Frozen Raspberries. FOOD AND ENVIRONMENTAL VIROLOGY 2018; 10:51-60. [PMID: 29019092 DOI: 10.1007/s12560-017-9321-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
Raspberries have lately caused several human norovirus (HuNoV) outbreaks in Europe. In this study, we developed and evaluated for HuNoV reverse transcription (RT)-PCR detection in frozen raspberries extraction methods that have equal sensitivity but are less time-consuming than widely used methods based on polyethylene glycol (PEG) precipitation and chloroform-butanol purification. One method was applied to stored frozen raspberries linked to previous HuNoV outbreaks and berries on sale. In the virus elution-based Method 1, sparkling water eluted viruses most efficiently from the berries. Method 2, based on direct nucleic acid extraction with minor PEG supplement, yielded the highest number of positive findings (4 out of 9) at low virus concentration level of 100 genome copies HuNoV genogroup II per 25 g raspberries. Both methods showed approximately equal sensitivity to a method including PEG precipitation and chloroform-butanol purification. Two naturally contaminated berry samples linked to HuNoV outbreaks in 2006 and 2009 were still positive for HuNoV genogroup I, but all berry products purchased from a local store remained negative for HuNoV. In conclusion, this study presents two efficient and rapid methods which can be used in urgent HuNoV outbreak investigations, since the results of the virus analysis are available in a few hours.
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Affiliation(s)
- Maija Summa
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, PO Box 66, 00014, Helsinki, Finland.
| | - Leena Maunula
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, PO Box 66, 00014, Helsinki, Finland
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Neethirajan S, Ahmed SR, Chand R, Buozis J, Nagy É. Recent Advances in Biosensor Development for Foodborne Virus Detection. Nanotheranostics 2017; 1:272-295. [PMID: 29071193 PMCID: PMC5646734 DOI: 10.7150/ntno.20301] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/07/2017] [Indexed: 11/05/2022] Open
Abstract
Outbreaks of foodborne diseases related to fresh produce have been increasing in North America and Europe. Viral foodborne pathogens are poorly understood, suffering from insufficient awareness and surveillance due to the limits on knowledge, availability, and costs of related technologies and devices. Current foodborne viruses are emphasized and newly emerging foodborne viruses are beginning to attract interest. To face current challenges regarding foodborne pathogens, a point-of-care (POC) concept has been introduced to food testing technology and device. POC device development involves technologies such as microfluidics, nanomaterials, biosensors and other advanced techniques. These advanced technologies, together with the challenges in developing foodborne virus detection assays and devices, are described and analysed in this critical review. Advanced technologies provide a path forward for foodborne virus detection, but more research and development will be needed to provide the level of manufacturing capacity required.
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Affiliation(s)
- Suresh Neethirajan
- BioNano Laboratory, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Syed Rahin Ahmed
- BioNano Laboratory, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Rohit Chand
- BioNano Laboratory, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - John Buozis
- BioNano Laboratory, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Éva Nagy
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
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Development of a Recombinase Polymerase Amplification Assay for Detection of Epidemic Human Noroviruses. Sci Rep 2017; 7:40244. [PMID: 28067278 PMCID: PMC5220337 DOI: 10.1038/srep40244] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/05/2016] [Indexed: 12/16/2022] Open
Abstract
Human norovirus is a leading cause of viral gastroenteritis worldwide. Rapid detection could facilitate control, however widespread point-of-care testing is infrequently done due to the lack of robust and portable methods. Recombinase polymerase amplification (RPA) is a novel isothermal method which rapidly amplifies and detects nucleic acids using a simple device in near real-time. An RT-RPA assay targeting a recent epidemic human norovirus strain (GII.4 New Orleans) was developed and evaluated in this study. The assay successfully detected purified norovirus RNA from multiple patient outbreak isolates and had a limit of detection of 3.40 ± 0.20 log10 genomic copies (LGC), which is comparable to most other reported isothermal norovirus amplification methods. The assay also detected norovirus in directly boiled stool, and displayed better resistance to inhibitors than a commonly used RT-qPCR assay. The assay was specific, as it did not amplify genomes from 9 non-related enteric viruses and bacteria. The assay detected norovirus in some samples in as little as 6 min, and the entire detection process can be performed in less than 30 min. The reported RT-RPA method shows promise for sensitive point-of-care detection of epidemic human norovirus, and is the fastest human norovirus amplification method to date.
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Response to the Questions Posed by the Food Safety and Inspection Service, the Centers for Disease Control and Prevention, the National Marine Fisheries Service, and the Defense Health Agency, Veterinary Services Activity Regarding Control Strategies for Reducing Foodborne Norovirus Infections. J Food Prot 2016; 79:843-89. [PMID: 27296435 DOI: 10.4315/0362-028x.jfp-15-215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Moore MD, Goulter RM, Jaykus LA. Human norovirus as a foodborne pathogen: challenges and developments. Annu Rev Food Sci Technol 2015; 6:411-33. [PMID: 25884284 DOI: 10.1146/annurev-food-022814-015643] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Human noroviruses (NoVs) are the leading cause of foodborne illness in the United States, and they exact a considerable human and economic burden worldwide. In fact, the many challenging aspects of human NoV have caused some to call it the nearly perfect foodborne pathogen. In this review, a brief overview of NoVs and their genetic structure is provided. Additionally, the challenges and recent developments related to human NoVs regarding viral evolution, transmission, epidemiology, outbreak identification, cultivation, animal and human models, and detection are presented.
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Affiliation(s)
- Matthew D Moore
- Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, North Carolina 27695;
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Mikel P, Vasickova P, Kralik P. Methods for Preparation of MS2 Phage-Like Particles and Their Utilization as Process Control Viruses in RT-PCR and qRT-PCR Detection of RNA Viruses From Food Matrices and Clinical Specimens. FOOD AND ENVIRONMENTAL VIROLOGY 2015; 7:96-111. [PMID: 25711389 PMCID: PMC7090958 DOI: 10.1007/s12560-015-9188-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
RNA viruses are pathogenic agents of many serious infectious diseases affecting humans and animals. The detection of pathogenic RNA viruses is based on modern molecular methods, of which the most widely used methods are the reverse transcription polymerase chain reaction (RT-PCR) and the real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR). All steps of RT-PCR and qRT-PCR should be strictly controlled to ensure the validity of obtained results. False-negative results may be caused not only by inhibition of RT or/and PCR steps but also by failure of the nucleic acid extraction step, particularly in the case of viral RNA extraction. The control of nucleic acid extraction generally involves the utilization of a non-pathogenic virus (process control virus) of similar structural properties to those of the target virus. Although in clinical samples the use of such process control virus is only recommended, in other kinds of settings such as food matrices its use is necessary. Currently, several different process control viruses are used for these purposes. Process control viruses can also be constructed artificially using technology for production of MS2 phage-like particles, which have many advantages in comparison with other used controls and are especially suited for controlling the detection and quantification of certain types of RNA viruses. The technology for production of MS2 phage-like particles is theoretically well established, uses the knowledge gained from the study of the familiar bacteriophage MS2 and utilizes many different approaches for the construction of the various process control viruses. Nevertheless, the practical use of MS2 phage-like particles in routine diagnostics is relatively uncommon. The current situation with regard to the use of MS2 phage-like particles as process control viruses in detection of RNA viruses and different methods of their construction, purification and use are summarized and discussed in this review.
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Affiliation(s)
- P Mikel
- Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic,
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