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Dobrut A, Skibiński J, Bekier A, Drożdż K, Rudnicka K, Płociński P, Siemińska I, Brzychczy-Włoch M. Development of a prototypic, field-usable diagnostic tool for the detection of gram-positive cocci-induced mastitis in cattle. BMC Vet Res 2024; 20:169. [PMID: 38698383 PMCID: PMC11064325 DOI: 10.1186/s12917-024-04028-5] [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: 11/24/2023] [Accepted: 04/22/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Bovine mastitis is one of the most widespread diseases affecting cattle, leading to significant losses for the dairy industry. Currently, the so-called gold standard in mastitis diagnosis involves determining the somatic cell count (SCC). Apart from a number of advantages, this method has one serious flaw: It does not identify the etiological factor causing a particular infection, making it impossible to introduce targeted antimicrobial therapy. This can contribute to multidrug-resistance in bacterial species. The diagnostic market lacks a test that has the advantages of SCC and also recognizes the species of pathogen causing the inflammation. Therefore, the aim of our study was to develop a lateral flow immunoassay (LFIA) based on elongation factor Tu for identifying most prevalent Gram-positive cocci responsible for causing mastitis including Streptococcus uberis, Streptococcus agalactiae and Staphylococcus aureus. RESULTS As a result, we showed that the assay for S. uberis detection demonstrated a specificity of 89.02%, a sensitivity of 43.59%, and an accuracy of 80.3%. In turn, the second variant - assay for Gram-positive cocci reached a specificity of 95.59%, a sensitivity of 43.28%, and an accuracy of 78.33%. CONCLUSIONS Our study shows that EF-Tu is a promising target for LFIA and we have delivered evidence that further evaluation could improve test parameters and fill the gap in the mastitis diagnostics market.
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Affiliation(s)
- Anna Dobrut
- Department of Molecular Medical Microbiology, Chair of Microbiology, Jagiellonian University Medical College, Krakow, Poland.
| | - Jakub Skibiński
- BioMedChem Doctoral School of University of Lodz and Lodz Institutes of The Polish Academy of Sciences, University of Lodz, Lodz, Poland
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Adrian Bekier
- Department of Immunology and Allergy, Chair of Pulmonology, Rheumatology and Clinical Immunology, Medical University of Lodz, Lodz, Poland
| | - Kamil Drożdż
- Department of Molecular Medical Microbiology, Chair of Microbiology, Jagiellonian University Medical College, Krakow, Poland
| | - Karolina Rudnicka
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
| | - Przemysław Płociński
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Izabela Siemińska
- Institute of Veterinary Sciences, University Center of Veterinary Medicine JU-AU, University of Agriculture in Krakow, Krakow, Poland
| | - Monika Brzychczy-Włoch
- Department of Molecular Medical Microbiology, Chair of Microbiology, Jagiellonian University Medical College, Krakow, Poland
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2
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Nan X, Yao X, Yang L, Cui Y. Lateral flow assay of pathogenic viruses and bacteria in healthcare. Analyst 2023; 148:4573-4590. [PMID: 37655501 DOI: 10.1039/d3an00719g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Healthcare-associated pathogenic viruses and bacteria can have a serious impact on human health and have attracted widespread global attention. The lateral flow assay is a unidirectional detection based on the binding of a target analyte and a bioreceptor on the device via lateral flow. With incredible advantages over traditional chromatographic methods, such as rapid detection, ease of manufacture and cost effectiveness, these test strips are increasingly considered the ideal form for point-of-care applications. This review explores lateral flow assays for pathogenic viruses and bacteria, with a particular focus on methodologies, device components, construction methods, and applications. We anticipate that this review could provide exciting opportunities for developing new lateral flow devices for pathogens and advance related healthcare applications.
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Affiliation(s)
- Xuanxu Nan
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Xuesong Yao
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Li Yang
- Peking University First Hospital; Peking University Institute of Nephrology, Beijing 100034, P. R. China.
| | - Yue Cui
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
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3
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Younes N, Yassine HM, Kourentzi K, Tang P, Litvinov D, Willson RC, Abu-Raddad LJ, Nasrallah GK. A review of rapid food safety testing: using lateral flow assay platform to detect foodborne pathogens. Crit Rev Food Sci Nutr 2023; 64:9910-9932. [PMID: 37350754 DOI: 10.1080/10408398.2023.2217921] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
The detrimental impact of foodborne pathogens on human health makes food safety a major concern at all levels of production. Conventional methods to detect foodborne pathogens, such as live culture, high-performance liquid chromatography, and molecular techniques, are relatively tedious, time-consuming, laborious, and expensive, which hinders their use for on-site applications. Recurrent outbreaks of foodborne illness have heightened the demand for rapid and simple technologies for detection of foodborne pathogens. Recently, Lateral flow assays (LFA) have drawn attention because of their ability to detect pathogens rapidly, cheaply, and on-site. Here, we reviewed the latest developments in LFAs to detect various foodborne pathogens in food samples, giving special attention to how reporters and labels have improved LFA performance. We also discussed different approaches to improve LFA sensitivity and specificity. Most importantly, due to the lack of studies on LFAs for the detection of viral foodborne pathogens in food samples, we summarized our recent research on developing LFAs for the detection of viral foodborne pathogens. Finally, we highlighted the main challenges for further development of LFA platforms. In summary, with continuing improvements, LFAs may soon offer excellent performance at point-of-care that is competitive with laboratory techniques while retaining a rapid format.
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Affiliation(s)
- Nadin Younes
- Biomedical Research Center, Qatar University, Doha, Qatar
- Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hadi M Yassine
- Biomedical Research Center, Qatar University, Doha, Qatar
- Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Katerina Kourentzi
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas, USA
| | - Patrick Tang
- Department of Pathology, Sidra Medicine, Doha, Qatar
| | - Dmitri Litvinov
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas, USA
- Center for Integrated Bio & Nano Systems, University of Houston, Houston, Texas, USA
| | - Richard C Willson
- William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas, USA
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, USA
| | - Laith J Abu-Raddad
- Infectious Disease Epidemiology Group, Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar
- World Health Organization Collaborating Centre for Disease Epidemiology Analytics on HIV/AIDS, Sexually Transmitted Infections, and Viral Hepatitis, Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar
- Department of Healthcare Policy and Research, Weill Cornell Medicine, Cornell University, New York, New York, USA
| | - Gheyath K Nasrallah
- Biomedical Research Center, Qatar University, Doha, Qatar
- Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
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4
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Zhu L, Liang Z, Xu Y, Chen Z, Wang J, Zhou L. Ultrasensitive and Rapid Visual Detection of Escherichia coli O157:H7 Based on RAA-CRISPR/Cas12a System. BIOSENSORS 2023; 13:659. [PMID: 37367024 DOI: 10.3390/bios13060659] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
Escherichia coli (E. coli) O157:H7 is a major foodborne and waterborne pathogen that can threaten human health. Due to its high toxicity at low concentrations, it is crucial to establish a time-saving and highly sensitive in situ detection method. Herein, we developed a rapid, ultrasensitive, and visualized method for detecting E. coli O157:H7 based on a combination of Recombinase-Aided Amplification (RAA) and CRISPR/Cas12a technology. The CRISPR/Cas12a-based system was pre-amplified using the RAA method, which showed high sensitivity and enabled detecting as low as ~1 CFU/mL (fluorescence method) and 1 × 102 CFU/mL (lateral flow assay) of E. coli O157:H7, which was much lower than the detection limit of the traditional real-time PCR technology (103 CFU/mL) and ELISA (104~107 CFU/mL). In addition, we demonstrated that this method still has good applicability in practical samples by simulating the detection in real milk and drinking water samples. Importantly, our RAA-CRISPR/Cas12a detection system could complete the overall process (including extraction, amplification, and detection) within 55 min under optimized conditions, which is faster than most other reported sensors, which take several hours to several days. The signal readout could also be visualized by fluorescence generated with a handheld UV lamp or a naked-eye-detected lateral flow assay depending on the DNA reporters used. Because of the advantages of being fast, having high sensitivity, and not requiring sophisticated equipment, this method has a promising application prospect for in situ detection of trace amounts of pathogens.
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Affiliation(s)
- Lishan Zhu
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Zhenda Liang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yongtao Xu
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Zhiquan Chen
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Jiasi Wang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518107, China
| | - Li Zhou
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
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5
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Ardekani LS, Thulstrup PW. Gold Nanoparticle-Mediated Lateral Flow Assays for Detection of Host Antibodies and COVID-19 Proteins. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1456. [PMID: 35564165 PMCID: PMC9102158 DOI: 10.3390/nano12091456] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 01/15/2023]
Abstract
Coronaviruses, that are now well-known to the public, include a family of viruses that can cause severe acute respiratory syndrome (SARS) and other respiratory diseases, such as Middle East respiratory syndrome (MERS). Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the seventh member of this coronavirus family, was detected in 2019 and can cause a number of respiratory symptoms, from dry cough and fever to fatal viral pneumonia. Various diagnostic assays ranging from real-time polymerase chain reaction (RT-PCR) to point-of-care medical diagnostic systems have been developed for detection of viral components or antibodies targeting the virus. Point-of-care assays allow rapid diagnostic assessment of infectious patients. Such assays are ideally simple, low-cost, portable tests with the possibility for on-site field detection that do not require skilled staff, sophisticated equipment, or sample pretreatment, as compared to RT-PCR. Since early 2021 when new SARS-CoV-2 variants of concern increased, rapid tests became more crucial in the disease management cycle. Among rapid tests, gold nanoparticle (GNP)-based lateral flow assays (LFAs) have high capacity for performing at the bedside, paving the way to easy access to diagnosis results. In this review, GNP-based LFAs used for either COVID-19 proteins or human response antibodies are summarized and recommendations for their improvement have been suggested.
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Affiliation(s)
- Leila Safaee Ardekani
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-111, Iran
| | - Peter Waaben Thulstrup
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
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6
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La Spina R, António DC, Bombera R, Lettieri T, Lequarré AS, Colpo P, Valsesia A. New Detection Platform for Screening Bacteria in Liquid Samples. BIOSENSORS 2021; 11:142. [PMID: 34062907 PMCID: PMC8147366 DOI: 10.3390/bios11050142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 11/26/2022]
Abstract
The development of sensitive methods for the determination of potential bacterial contamination is of upmost importance for environmental monitoring and food safety. In this study, we present a new method combining a fast pre-enrichment step using a microporous cryogel and a detection and identification step using antimicrobial peptides (AMPs) and labelled antibodies, respectively. The experimental method consists of: (i) the capture of large amounts of bacteria from liquid samples by using a highly porous and functionalized cryogel; (ii) the detection and categorisation of Gram-positive and Gram-negative bacteria by determining their affinities toward a small set of AMPs; and (iii) the identification of the bacterial strain by using labelled detection antibodies. As proof of concept, the assessment of the three steps of the analysis was performed by using Escherichia coli and Bacillus sp. as models for Gram-negative and Gram-positive bacteria, respectively. The use of AMPs with broad specificity combined with labelled antibodies enabled the detection and potential categorization of a large spectrum of unknown or unexpected bacteria.
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Affiliation(s)
- Rita La Spina
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
| | - Diana C. António
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
| | - Radoslaw Bombera
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
| | - Teresa Lettieri
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
| | | | - Pascal Colpo
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
| | - Andrea Valsesia
- European Commission, Joint Research Centre (JRC), Ispra, Italy; (R.L.S.); (D.C.A.); (R.B.); (T.L.); (P.C.)
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7
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Campbell VR, Carson MS, Lao A, Maran K, Yang EJ, Kamei DT. Point-of-Need Diagnostics for Foodborne Pathogen Screening. SLAS Technol 2020; 26:55-79. [PMID: 33012245 DOI: 10.1177/2472630320962003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Foodborne illness is a major public health issue that results in millions of global infections annually. The burden of such illness sits mostly with developing countries, as access to advanced laboratory equipment and skilled lab technicians, as well as consistent power sources, is limited and expensive. Current gold standards in foodborne pathogen screening involve labor-intensive sample enrichment steps, pathogen isolation and purification, and costly readout machinery. Overall, time to detection can take multiple days, excluding the time it takes to ship samples to off-site laboratories. Efforts have been made to simplify the workflow of such tests by integrating multiple steps of foodborne pathogen screening procedures into a singular device, as well as implementing more point-of-need readout methods. In this review, we explore recent advancements in developing point-of-need devices for foodborne pathogen screening. We discuss the detection of surface markers, nucleic acids, and metabolic products using both paper-based and microfluidic devices, focusing primarily on developments that have been made between 2015 and mid-2020.
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Affiliation(s)
- Veronica R Campbell
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
| | - Mariam S Carson
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
| | - Amelia Lao
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
| | - Kajal Maran
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
| | - Eric J Yang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
| | - Daniel T Kamei
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, CA, USA
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8
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Jamal RB, Shipovskov S, Ferapontova EE. Electrochemical Immuno- and Aptamer-Based Assays for Bacteria: Pros and Cons over Traditional Detection Schemes. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5561. [PMID: 32998409 PMCID: PMC7582323 DOI: 10.3390/s20195561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/15/2020] [Accepted: 09/23/2020] [Indexed: 01/20/2023]
Abstract
Microbiological safety of the human environment and health needs advanced monitoring tools both for the specific detection of bacteria in complex biological matrices, often in the presence of excessive amounts of other bacterial species, and for bacteria quantification at a single cell level. Here, we discuss the existing electrochemical approaches for bacterial analysis that are based on the biospecific recognition of whole bacterial cells. Perspectives of such assays applications as emergency-use biosensors for quick analysis of trace levels of bacteria by minimally trained personnel are argued.
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Affiliation(s)
| | | | - Elena E. Ferapontova
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University Gustav Wieds Vej 14, DK-8000 Aarhus, Denmark; (R.B.J.); (S.S.)
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9
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Tominaga T, Ishii M. Detection of microorganisms with lateral flow test strips. METHODS IN MICROBIOLOGY 2020. [DOI: 10.1016/bs.mim.2019.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Incili GK, Koluman A, Aktüre A, Ataşalan A. Validation and verification of LAMP, ISO, and VIDAS UP methods for detection of Escherichia coli O157:H7 in different food matrices. J Microbiol Methods 2019; 165:105697. [PMID: 31445066 DOI: 10.1016/j.mimet.2019.105697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 11/30/2022]
Abstract
Escherichia coli O157:H7 is one of the most important food-borne pathogens to threaten public health. Cultural methods are used as a gold standard while they are laborious and time-consuming. Loop-mediated isothermal amplification (LAMP) method is an alternative method that became widely used for the detection of food-borne pathogens. The aim of this study was to evaluate the specificity and sensitivity of LAMP method for detection of E. coli O157:H7, also to compare detection performances with VIDAS UP and ISO (International Organization for Standardization) methods in different food matrices (beef meat, minced lamb meat, milk, cheese, apple puree, and soybean sprouts). E. coli O157:H7 were spiked in three different levels (high 4.58; medium 2.32; low 0.30 log10 CFU/g-ml) to food matrices. Although there were no significant differences in terms of the specificity and sensitivity values among the three methods (p ≥ .05), it was determined that the highest specificity and sensitivity values obtained from the LAMP method. Sensitivity and specificity values of LAMP method were found as 0.997 and 0.988, for the ISO method were 0.989 and 0.971, and for the VIDAS UP method were 0.980 and 0.963, respectively. In milk samples, sensitivity and specificity values of the VIDAS UP method were significantly lower than LAMP and ISO methods (p < .05). However, there were no significant differences found for the other food matrices among the three methods (p > .05). It can be summarized from this study that specificity and sensitivity values of the LAMP method are equal or higher and less time-consuming than ISO and VIDAS UP methods. In conclusion, using a simple, fast, and inexpensive detection method, such as LAMP, especially in endemic regions or in an outbreak to control spreading of pathogens, is very important for public health.
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Affiliation(s)
- Gökhan Kürşad Incili
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Fırat University, Elazıg, Turkey
| | - Ahmet Koluman
- Biomedical Engineering Department, Technology Faculty, Pamukkale University, Denizli, Turkey.
| | - Ayşegül Aktüre
- Ministry of Agriculture and Forestry, Food Control Laboratory Directorate, Adana, Turkey
| | - Ahmet Ataşalan
- Ministry of Agriculture and Forestry, Food Control Laboratory Directorate, Adana, Turkey
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11
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Development and application of a real-time polymerase chain reaction method for quantification of Escherichia coli in oysters (Crassostrea gigas). Food Microbiol 2019; 77:85-92. [DOI: 10.1016/j.fm.2018.08.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/30/2018] [Accepted: 08/31/2018] [Indexed: 11/17/2022]
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12
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Morales Ruiz S, Bendezu J, Choque Guevara R, Montesinos R, Requena D, Choque Moreau L, Montalván Ávalos Á, Fernández-Díaz M. Development of a lateral flow test for the rapid detection of Avibacterium paragallinarum in chickens suspected of having infectious coryza. BMC Vet Res 2018; 14:411. [PMID: 30567563 PMCID: PMC6300026 DOI: 10.1186/s12917-018-1729-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 11/30/2018] [Indexed: 11/12/2022] Open
Abstract
Background Infectious coryza (IC) is an acute respiratory disease of growing chickens and layers caused by Avibacterium paragallinarum. The development of tools that allow rapid pathogen detection is necessary in order to avoid disease dissemination and economic losses in poultry. An Av. paragallinarum-specific Ma-4 epitope of the TonB-dependent transporter (TBDT) was selected using bioinformatic tools in order to immunize a BalbC mouse and to produce monoclonal antibodies to be used in a lateral flow test (LFT) developed for Av. paragallinarum detection in chicken nasal mucus samples. Results The 1G7G8 monoclonal antibody was able to detect TBDT in Av. paragallinarum cultures (serogroups: A, B and C) by Western blot and indirect ELISA assay. Consequently, we developed a self-pairing prototype LFT. The limit of detection of the prototype LFT using Av. paragallinarum cultures was 1 × 104 colony-forming units (CFU)/mL. Thirty-five nasal mucus samples from chickens suspected of having infectious coryza were evaluated for the LFT detection capacity and compared with bacterial isolation (B.I) and polymerase chain reaction (PCR). Comparative indicators such as sensitivity (Se), specificity (Sp), positive predictive value (PPV), negative predictive values (NPV) and the kappa index (K) were obtained. The values were 100.0% Se, 50% Sp, 65.4% PPV, 100% NPV, and 0.49 K and 83.9% Se, 100% Sp, 100% PPV, 44.4% NPV, and 0.54 K for the comparison of the LFT with B.I and PCR, respectively. Additionally, the LFT allowed the detection of Av. paragallinarum from coinfection cases of Av. paragallinarum with Gallibacterium anatis. Conclusions The results indicate that the self-pairing prototype LFT is suitable for the detection of TBDT in Av. paragallinarum cultures as well as in field samples such as nasal mucus from Av. paragallinarum-infected chickens. Therefore, this prototype LFT could be considered a rapid and promising tool to be used in farm conditions for Av. paragallinarum diagnosis.
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Affiliation(s)
- Sandra Morales Ruiz
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru.
| | - Jorge Bendezu
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru.
| | - Ricardo Choque Guevara
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru
| | - Ricardo Montesinos
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru
| | - David Requena
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru.,Laboratorio de Bioinformática y Biología Molecular, Laboratorio de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Av. Honorio Delgado 430 San Martín de Porres, Lima, Lima, Peru
| | - Luz Choque Moreau
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru
| | - Ángela Montalván Ávalos
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru
| | - Manolo Fernández-Díaz
- Laboratorios de Investigación y Desarrollo, FARVET SAC, Carretera Panamericana Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru.,FARVET SPF SAC, Carretera Panamerica Sur Nº766 Km 198.5, Chincha Alta, 11702, Ica, Peru
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13
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Walper SA, Lasarte Aragonés G, Sapsford KE, Brown CW, Rowland CE, Breger JC, Medintz IL. Detecting Biothreat Agents: From Current Diagnostics to Developing Sensor Technologies. ACS Sens 2018; 3:1894-2024. [PMID: 30080029 DOI: 10.1021/acssensors.8b00420] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although a fundamental understanding of the pathogenicity of most biothreat agents has been elucidated and available treatments have increased substantially over the past decades, they still represent a significant public health threat in this age of (bio)terrorism, indiscriminate warfare, pollution, climate change, unchecked population growth, and globalization. The key step to almost all prevention, protection, prophylaxis, post-exposure treatment, and mitigation of any bioagent is early detection. Here, we review available methods for detecting bioagents including pathogenic bacteria and viruses along with their toxins. An introduction placing this subject in the historical context of previous naturally occurring outbreaks and efforts to weaponize selected agents is first provided along with definitions and relevant considerations. An overview of the detection technologies that find use in this endeavor along with how they provide data or transduce signal within a sensing configuration follows. Current "gold" standards for biothreat detection/diagnostics along with a listing of relevant FDA approved in vitro diagnostic devices is then discussed to provide an overview of the current state of the art. Given the 2014 outbreak of Ebola virus in Western Africa and the recent 2016 spread of Zika virus in the Americas, discussion of what constitutes a public health emergency and how new in vitro diagnostic devices are authorized for emergency use in the U.S. are also included. The majority of the Review is then subdivided around the sensing of bacterial, viral, and toxin biothreats with each including an overview of the major agents in that class, a detailed cross-section of different sensing methods in development based on assay format or analytical technique, and some discussion of related microfluidic lab-on-a-chip/point-of-care devices. Finally, an outlook is given on how this field will develop from the perspective of the biosensing technology itself and the new emerging threats they may face.
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Affiliation(s)
- Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Guillermo Lasarte Aragonés
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Kim E. Sapsford
- OMPT/CDRH/OIR/DMD Bacterial Respiratory and Medical Countermeasures Branch, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- National Research Council, Washington, D.C. 20036, United States
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
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14
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Armstrong CM, Ruth LE, Capobianco JA, Strobaugh TP, Rubio FM, Gehring AG. Detection of Shiga Toxin 2 Produced by Escherichia coli in Foods Using a Novel AlphaLISA. Toxins (Basel) 2018; 10:E422. [PMID: 30360508 PMCID: PMC6265734 DOI: 10.3390/toxins10110422] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/09/2018] [Accepted: 10/17/2018] [Indexed: 12/25/2022] Open
Abstract
Amplified luminescent proximity homogenous assay-linked immunosorbent assay (AlphaLISA) is comprised of a bead-based immunoassay that is used for small molecule detection. In this study, a novel AlphaLISA was developed and optimized for the detection of Shiga-toxin 2 (Stx2). Efficacy and sensitivity trials showed the AlphaLISA could detect ≥0.5 ng/mL of purified Stx2, which was comparable to the industry-standard enzyme-linked immunosorbent assay (ELISA) tests for Stx2 detection. In addition, evaluation of Shiga toxin-producing Escherichia coli (STEC)-inoculated Romaine lettuce and ground beef samples demonstrated that both the AlphaLISA and the ELISA were able to discern uninoculated samples from 1× and 10× diluted samples containing ~10 CFU/mL of STEC enriched in modified tryptic soy broth with mitomycin C for 16 h. Overall, the increased signal-to-noise ratios indicated a more robust signal was produced by the AlphaLISA compared to the ELISA and the delineation of higher toxin concentrations without the need for sample dilution implied a greater dynamic range for the AlphaLISA. Implementation of the newly developed AlphaLISA will allow for more rapid analysis for Stx2 with less manual manipulation, thus improving assay throughput and the ability to automate sample screening while maintaining detection limits of 0.5 ng/mL.
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Affiliation(s)
- Cheryl M Armstrong
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | | | - Joseph A Capobianco
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | - Terence P Strobaugh
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
| | | | - Andrew G Gehring
- Molecular Characterization of Foodborne Pathogens Research Unit, United States Department of Agriculture, Eastern Regional Research Center, Wyndmoor, PA 19038, USA.
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15
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Luo K, Kim HY, Oh MH, Kim YR. Paper-based lateral flow strip assay for the detection of foodborne pathogens: principles, applications, technological challenges and opportunities. Crit Rev Food Sci Nutr 2018; 60:157-170. [PMID: 30311773 DOI: 10.1080/10408398.2018.1516623] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
As a representative colorimetic biosnesor, paper-based LFSA have emerged as a promising and robust tool that can easily and instansly detect the presence of target biological components in food sample. Recently, LFSAs have gained a considerable attention as an alternative method for rapid diagnosis of foodborne pathogens to the conventional culture-based assays such as plate counting and PCR. One major drawback of the current LFSAs for the detection of pathogenic bacteria is the low sensitivity, limiting its practical applications in POCT. Not like many other protein-based biomarkers that are present in nM or pM range, the number of pathogenic bacteria that cause disease can be as low as few CFU/ml. Here, we review current advances in LFSAs for the detection of pathogenic bacteria in terms of chromatic agents and analyte types. Furthermore, recent approaches for signal enhancement and modifications of the LFSA architecture for multiplex detection of pathogenic bacteria are included in this review, together with the advantages and limitations of each techniques. Finally, the technological challenges and future prospect of LFSA-based POCT for the detection of pathogenic bacteria are discussed.
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Affiliation(s)
- Ke Luo
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104 Korea
| | - Hae-Yeong Kim
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104 Korea
| | - Mi-Hwa Oh
- National Institute of Animal Science, Rural Development Administration, Wanju 55365 Korea
| | - Young-Rok Kim
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104 Korea
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16
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Zhu C, Zhao G, Dou W. Core-shell red silica nanoparticles based immunochromatographic assay for detection of Escherichia coli O157:H7. Anal Chim Acta 2018; 1038:97-104. [PMID: 30278912 DOI: 10.1016/j.aca.2018.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/23/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022]
Abstract
In this paper, a new type immunochromatographic assay (ICA) based on core-shell red silica nanoparticles (core-shell red SiO2NPs) was proposed and used to detect Escherichia coli O157:H7 (E. coli O157:H7). This is the first report of qualitative ICA for detecting E. coli O157:H7 in phosphate buffer saline (PBS) and food sample using core-shell red SiO2NPs. Monodispersed red SiO2NPs were synthesized in the aqueous solution by modifying amino silane and C.I Reactive Red 136 on unmodified silica nanoparticles. The limit of detection (LOD) of this core-shell red SiO2NPs based ICA for E. coli O157:H7 was 4.5 × 105 CFU/mL in sterile PBS within 20 min. The LOD of this ICA strip for E. coli O157:H7 in milk and pork samples both were 4.5 × 106 CFU/mL. The core-shell red SiO2NPs based ICA for detection of E. coli O157:H7 has no cross activity with other bacteria. All these results show that this new kind of core-shell colored SiO2NPs is promising for the practical applications in ICA and other rapid detection fields.
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Affiliation(s)
- Chunjie Zhu
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Guangying Zhao
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Wenchao Dou
- Food Safety Key Laboratory of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, China.
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17
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Banerjee R, Jaiswal A. Recent advances in nanoparticle-based lateral flow immunoassay as a point-of-care diagnostic tool for infectious agents and diseases. Analyst 2018; 143:1970-1996. [DOI: 10.1039/c8an00307f] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in lateral flow immunoassay-based devices as a point-of-care analytical tool for the detection of infectious diseases are reviewed.
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Affiliation(s)
- Ruptanu Banerjee
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
| | - Amit Jaiswal
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
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18
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Development of a rapid immunochromatographic assay to detect contamination of raw oysters with enteropathogenic Vibrio parahaemolyticus. Int J Food Microbiol 2018; 264:16-24. [DOI: 10.1016/j.ijfoodmicro.2017.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/12/2017] [Accepted: 10/12/2017] [Indexed: 11/20/2022]
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19
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Zhao Y, Ren Z, Kang Q, Chen Y, Wang X, Tang X, Zhang F, Qin J. Development of an antigen specific colloidal gold immunochromatographic assay for detection of antibody to M. wenyonii in bovine sera. J Microbiol Methods 2017; 143:58-62. [PMID: 29031821 DOI: 10.1016/j.mimet.2017.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 10/06/2017] [Accepted: 10/11/2017] [Indexed: 11/30/2022]
Abstract
The goal of this research was to develop a colloidal gold immunochromatographic strip test for detection of antibody to Mycoplasma wenyonii (M. wenyonii) in bovine using specific antigen. M. wenyonii was isolated from blood samples from the spontaneously infected cattle in Hebei province, China. Suspensions of the M. wenyonii antigenic proteins were prepared by freeze-thaw cycles and ultrasonication. Candidate antigens were screened with sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting. The specific bands of the most antigenic proteins were excised from the gel and were purified by using a gel extraction kit. A colloidal gold immunochromatographic assay using the purified specific proteins as the coating antigen (sp-GICA) was developed for detection of antibody to M. wenyonii. Blood samples from cows in the field were tested for antibody to M. wenyonii by the sp-GICA strip and enzyme-linked immunosorbent assay (ELISA) simultaneously to compare the specificity, sensitivity and accuracy. The results showed that the specific proteins bands with sufficient immunoreactivity have been identified. The apparent molecular weights of the proteins were 115 kDa and 60 kDa, respectively. The stability and reproducibility were quite excellent after the storage of the strip at room temperature for 5 months. This sp-GICA showed 95.48% (148/155), 92.86% (39/42) and 94.92% (187/197) in terms of specificity, sensitivity and accuracy compared to ELISA. The sp-GICA described here shows excellent agreement with ELISA and it is shown to be a simple, convenient, specific and highly sensitive assay for detection of serum antibodies to M. wenyonii.
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Affiliation(s)
- Yuelan Zhao
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Zhijun Ren
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Qian Kang
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Yingbin Chen
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Xuewei Wang
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Xinhao Tang
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China
| | - Fumei Zhang
- College of Agriculture and Forestry Science and Technology, HeBei North University, Zhangjiaokou, Hebei 075000, China
| | - Jianhua Qin
- College of Veterinary Medicine, Agricultural University of Hebei, Baoding, Hebei 071001, China.
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20
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Fernandez RE, Rohani A, Farmehini V, Swami NS. Review: Microbial analysis in dielectrophoretic microfluidic systems. Anal Chim Acta 2017; 966:11-33. [PMID: 28372723 PMCID: PMC5424535 DOI: 10.1016/j.aca.2017.02.024] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 02/03/2017] [Accepted: 02/20/2017] [Indexed: 12/13/2022]
Abstract
Infections caused by various known and emerging pathogenic microorganisms, including antibiotic-resistant strains, are a major threat to global health and well-being. This highlights the urgent need for detection systems for microbial identification, quantification and characterization towards assessing infections, prescribing therapies and understanding the dynamic cellular modifications. Current state-of-the-art microbial detection systems exhibit a trade-off between sensitivity and assay time, which could be alleviated by selective and label-free microbial capture onto the sensor surface from dilute samples. AC electrokinetic methods, such as dielectrophoresis, enable frequency-selective capture of viable microbial cells and spores due to polarization based on their distinguishing size, shape and sub-cellular compositional characteristics, for downstream coupling to various detection modalities. Following elucidation of the polarization mechanisms that distinguish bacterial cells from each other, as well as from mammalian cells, this review compares the microfluidic platforms for dielectrophoretic manipulation of microbials and their coupling to various detection modalities, including immuno-capture, impedance measurement, Raman spectroscopy and nucleic acid amplification methods, as well as for phenotypic assessment of microbial viability and antibiotic susceptibility. Based on the urgent need within point-of-care diagnostics towards reducing assay times and enhancing capture of the target organism, as well as the emerging interest in isolating intact microbials based on their phenotype and subcellular features, we envision widespread adoption of these label-free and selective electrokinetic techniques.
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Affiliation(s)
- Renny E Fernandez
- Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA
| | - Ali Rohani
- Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA
| | - Vahid Farmehini
- Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA
| | - Nathan S Swami
- Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA.
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21
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Ranjbar R, Erfanmanesh M, Afshar D, Mohammadi M, Ghaderi O, Haghnazari A. Visual Detection of Enterohemorrhagic Escherichia coli O157:H7 Using Loop-Mediated Isothermal Amplification. Electron Physician 2016; 8:2576-85. [PMID: 27504175 PMCID: PMC4965210 DOI: 10.19082/2576] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 01/20/2016] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Escherichia coli O157:H7, an important foodborne pathogen, can cause serious renal damage, which can also lead to mortality. Since a rapid and sensitive method is needed to identify this pathogenic agent, we evaluated Loop-Mediated Isothermal Amplification Assay (LAMP) to detect Escherichia coli O157:H7. METHODS We used six primers that specifically identified the rfbE gene. To examine the sensitivity of the method, different dilutions were subjected to the LAMP reaction. Other bacterial strains also were investigated to determine the specificity of the test. The turbidity of the amplified products was assayed by visual detection. The amplified products were detected by addition of SYBR Green II to the reaction tubes. RESULTS Amplification products were observed as a ladder-like pattern on the agarose gel. A white turbidity emerged in the positive tubes. Under UV light, the positive samples were green, whereas the negative samples were orange. The detection limit of the LAMP was 78 pg/tube, and this indicated that it was 100 times more sensitive than PCR for the detection of EHEC. No LAMP products were detected when template DNA of non-EHEC strains were used, suggesting high specificity of the LAMP assay. CONCLUSION The results indicated that the LAMP assay is a valuable diagnostic assay to identify EHEC O157:H7. In addition, the simplicity, sensitivity, specificity, and rapidity of this assay make it a useful method to diagnose pathogens in primary labs without any need for expensive equipment or specialized techniques.
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Affiliation(s)
- Reza Ranjbar
- Ph.D. of Medical Bacteriology, Professor, Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Erfanmanesh
- M.Sc. of Biotechnology, Department of Agriculture and Plant Breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
| | - Davoud Afshar
- Ph.D. of Medical Bacteriology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Mohammadi
- Ph.D. of Pharmaceutical Biotechnology, Assistant Professor, Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Omar Ghaderi
- Ph.D. Candidate of Pharmaceutical Biotechnology, Department of Pharmaceutical Biotechnology, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Haghnazari
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
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22
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Alcaine SD, Law K, Ho S, Kinchla AJ, Sela DA, Nugen SR. Bioengineering bacteriophages to enhance the sensitivity of phage amplification-based paper fluidic detection of bacteria. Biosens Bioelectron 2016; 82:14-9. [PMID: 27031186 DOI: 10.1016/j.bios.2016.03.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/10/2016] [Accepted: 03/18/2016] [Indexed: 10/22/2022]
Abstract
Bacteriophage (phage) amplification is an attractive method for the detection of bacteria due to a narrow phage-host specificity, short amplification times, and the phages' ability to differentiate between viable and non-viable bacterial cells. The next step in phage-based bacteria detection is leveraging bioengineered phages to create low-cost, rapid, and easy-to-use detection platforms such as lateral flow assays. Our work establishes the proof-of-concept for the use of bioengineered T7 phage strains to increase the sensitivity of phage amplification-based lateral flow assays. We have demonstrated a greater than 10-fold increase in sensitivity using a phage-based protein reporter, maltose-binding protein, over the detection of replicated T7 phage viron itself, and a greater then 100-fold increase in sensitivity using a phage-based enzymatic reporter, alkaline phosphatase. This increase in sensitivity enabled us to detect 10(3)CFU/mL of Escherichia coli in broth after 7h, and by adding a filter concentration step, the ability to detect a regulatory relevant E. coli concentration of 100CFU/100mL in inoculated river water after 9h, where the current standard requires days for results. The combination of the paper fluidic format with phage-based detection provides a platform for the development of novel diagnostics that are sensitive, rapid, and easy to use.
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Affiliation(s)
- S D Alcaine
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
| | - K Law
- Department of Microbiology, University of Massachusetts, Amherst, MA, United States
| | - S Ho
- Department of Microbiology, University of Massachusetts, Amherst, MA, United States
| | - A J Kinchla
- Department of Food Science, University of Massachusetts, Amherst, MA, United States
| | - D A Sela
- Department of Food Science, University of Massachusetts, Amherst, MA, United States; Department of Microbiology, University of Massachusetts, Amherst, MA, United States
| | - S R Nugen
- Department of Food Science, University of Massachusetts, Amherst, MA, United States; Department of Microbiology, University of Massachusetts, Amherst, MA, United States.
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23
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Bülbül G, Hayat A, Andreescu S. Portable Nanoparticle-Based Sensors for Food Safety Assessment. SENSORS 2015; 15:30736-58. [PMID: 26690169 PMCID: PMC4721746 DOI: 10.3390/s151229826] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/26/2015] [Indexed: 12/11/2022]
Abstract
The use of nanotechnology-derived products in the development of sensors and analytical measurement methodologies has increased significantly over the past decade. Nano-based sensing approaches include the use of nanoparticles (NPs) and nanostructures to enhance sensitivity and selectivity, design new detection schemes, improve sample preparation and increase portability. This review summarizes recent advancements in the design and development of NP-based sensors for assessing food safety. The most common types of NPs used to fabricate sensors for detection of food contaminants are discussed. Selected examples of NP-based detection schemes with colorimetric and electrochemical detection are provided with focus on sensors for the detection of chemical and biological contaminants including pesticides, heavy metals, bacterial pathogens and natural toxins. Current trends in the development of low-cost portable NP-based technology for rapid assessment of food safety as well as challenges for practical implementation and future research directions are discussed.
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Affiliation(s)
- Gonca Bülbül
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA.
| | - Akhtar Hayat
- Interdisciplinary Research Centre in Biomedical Materials, COMSAT Institute of Information Technology (CIIT), Defence Road, Off Raiwind Road, Lahore 54000, Pakistan.
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA.
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Jiang T, Song Y, Wei T, Li H, Du D, Zhu MJ, Lin Y. Sensitive detection of Escherichia coli O157:H7 using Pt-Au bimetal nanoparticles with peroxidase-like amplification. Biosens Bioelectron 2015; 77:687-94. [PMID: 26496223 DOI: 10.1016/j.bios.2015.10.017] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/15/2015] [Accepted: 10/06/2015] [Indexed: 01/06/2023]
Abstract
Escherichia coli O157:H7 is one of the most notorious foodborne pathogens causing serious disease at low infectious dose. To protect consumers from deadly foodborne E. coli O157:H7 infection, it is vital to develop a simple, reliable, sensitive and rapid method which can detect low level E. coli O157:H7 in foods at real-time. We have successfully developed a novel immunochromatographic assay (ICA) with enhanced sensitivity for the visual and quantitative detection of E. coli O157:H7. Sandwich-type immunoreactions were performed on the ICA, and Pt-Au bimetal nanoparticles (NPs) were accumulated on the test zone. The signal amplification is based on Pt-Au bimetal NPs possessing high peroxidase activity toward 3,3',5,5'-tetramethylbenzidine, which can produce characteristic colored bands and thus, enable visual detection of E. coli O157:H7 without instrumentation. The innovative aspect of this approach lies in the visualization and quantification of target pathogen through the detection of color intensity. Due to the excellent peroxidase activity of Pt-Au NPs, they emit strong visible color intensity in less than 1 min for visual observation even in low concentration range of E. coli O157:H7. Quantification was performed using a commercial assay meter. The sensitivity was improved more than 1000-folds compared to the conventional test strip based on colored gold-colloids. Although the feasibility was demonstrated using E. coli O157:H7 as a model analyte, this approach could be easily developed to be a universal signal amplification technique and applied to detection of a wide variety of foodborne pathogens and protein biomarkers.
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Affiliation(s)
- Tao Jiang
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States; Key Laboratory of Animal Virology of Ministry of Agriculture, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Yang Song
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States
| | - Tianxiang Wei
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States
| | - He Li
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States
| | - Dan Du
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States; Paul G. Allen School for Global Animal Health, Washington State University, Pullman, WA 99164, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, United States.
| | - Yuehe Lin
- School of Mechanical and Material Engineering, Washington State University, Pullman, WA 99164, United States; Paul G. Allen School for Global Animal Health, Washington State University, Pullman, WA 99164, United States.
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25
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Guo DL, Pan QW, Li KP, Li JQ, Shen HW, Wang XL, Zhang XY, Li XS, Fu F, Feng L, Li X. Development and clinical evaluation of a new gold-immunochromatographic assay for the detection of antibodies against field strains of pseudorabies virus. J Virol Methods 2015; 222:164-9. [PMID: 26141732 DOI: 10.1016/j.jviromet.2015.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/25/2015] [Accepted: 06/28/2015] [Indexed: 11/26/2022]
Abstract
An immunochromatographic strip (ICS) was developed for the detection of swine antibodies against glycoprotein E (gE) in Pseudorabies Virus (PRV). In this test, Staphylococcal Protein A (SPA) labeled with colloidal gold was dispensed on a conjugate pad as the detector. Purified PRV-gE and pig-IgG were blotted on a nitrocellulose membrane for the test (T) and control lines (C), respectively. If the tested serum contains IgG antibodies against PRV-gE, the IgG will interact with the colloidal gold-SPA to form a complex (gold-SPA-swine IgG). The complex will react with the immobilized PRV-gE on the T line and the Pig-IgG in the C line of the ICS to form two visible red bands. If there is no IgG antibody against PRV-gE in the sample serum, only the C line will be visible. The ICS was capable of specifically detecting PRV-gE antibody within 5 min, and its stability and reproducibility were quite good after storage at 4°C and use within 4 months. Using an IDEXX Pseudorabies Virus gE Antibody Test Kit (IDEXX PRV gE Ab test) as a reference, the relative specificity and sensitivity of the ICS were determined to be 81.6% and 90.7%, respectively. Furthermore, there was a good agreement between the results obtained by the commercial product and the ICS (kappa=0.7289).
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Affiliation(s)
- Dian-lei Guo
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Qi-wei Pan
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Kun-peng Li
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Jun-qing Li
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Han-wei Shen
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Xiang-ling Wang
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Xun-yun Zhang
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Xue-song Li
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Fang Fu
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Li Feng
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China
| | - Xi Li
- Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 427 Maduan St., Nangang District, Harbin 150001, China.
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Law JWF, Ab Mutalib NS, Chan KG, Lee LH. Rapid methods for the detection of foodborne bacterial pathogens: principles, applications, advantages and limitations. Front Microbiol 2015. [PMID: 25628612 DOI: 10.3389/fmicb.2014.00770.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The incidence of foodborne diseases has increased over the years and resulted in major public health problem globally. Foodborne pathogens can be found in various foods and it is important to detect foodborne pathogens to provide safe food supply and to prevent foodborne diseases. The conventional methods used to detect foodborne pathogen are time consuming and laborious. Hence, a variety of methods have been developed for rapid detection of foodborne pathogens as it is required in many food analyses. Rapid detection methods can be categorized into nucleic acid-based, biosensor-based and immunological-based methods. This review emphasizes on the principles and application of recent rapid methods for the detection of foodborne bacterial pathogens. Detection methods included are simple polymerase chain reaction (PCR), multiplex PCR, real-time PCR, nucleic acid sequence-based amplification (NASBA), loop-mediated isothermal amplification (LAMP) and oligonucleotide DNA microarray which classified as nucleic acid-based methods; optical, electrochemical and mass-based biosensors which classified as biosensor-based methods; enzyme-linked immunosorbent assay (ELISA) and lateral flow immunoassay which classified as immunological-based methods. In general, rapid detection methods are generally time-efficient, sensitive, specific and labor-saving. The developments of rapid detection methods are vital in prevention and treatment of foodborne diseases.
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Affiliation(s)
- Jodi Woan-Fei Law
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor Darul Ehsan, Malaysia ; School of Science, Monash University Malaysia Selangor Darul Ehsan, Malaysia
| | - Nurul-Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Centre, Bandar Tun Razak Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya Kuala Lumpur, Malaysia
| | - Learn-Han Lee
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Selangor Darul Ehsan, Malaysia
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Shan S, Lai W, Xiong Y, Wei H, Xu H. Novel strategies to enhance lateral flow immunoassay sensitivity for detecting foodborne pathogens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:745-53. [PMID: 25539027 DOI: 10.1021/jf5046415] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Food contaminated by foodborne pathogens causes diseases, affects individuals, and even kills those affected individuals. As such, rapid and sensitive detection methods should be developed to screen pathogens in food. One current detection method is lateral flow immunoassay, an efficient technique because of several advantages, including rapidity, simplicity, stability, portability, and sensitivity. This review presents the format and principle of lateral flow immunoassay strip and the development of conventional lateral flow immunoassay for detecting foodborne pathogens. Furthermore, novel strategies that can be applied to enhance the sensitivity of lateral flow immunoassay to detect foodborne pathogens are presented; these strategies include innovating new label application, designing new formats of lateral flow immunoassay, combining with other methods, and developing signal amplification systems. With these advancements, detection sensitivity and detection time can be greatly improved.
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Affiliation(s)
- Shan Shan
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
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Law JWF, Ab Mutalib NS, Chan KG, Lee LH. Rapid methods for the detection of foodborne bacterial pathogens: principles, applications, advantages and limitations. Front Microbiol 2015; 5:770. [PMID: 25628612 PMCID: PMC4290631 DOI: 10.3389/fmicb.2014.00770] [Citation(s) in RCA: 517] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 12/17/2014] [Indexed: 12/11/2022] Open
Abstract
The incidence of foodborne diseases has increased over the years and resulted in major public health problem globally. Foodborne pathogens can be found in various foods and it is important to detect foodborne pathogens to provide safe food supply and to prevent foodborne diseases. The conventional methods used to detect foodborne pathogen are time consuming and laborious. Hence, a variety of methods have been developed for rapid detection of foodborne pathogens as it is required in many food analyses. Rapid detection methods can be categorized into nucleic acid-based, biosensor-based and immunological-based methods. This review emphasizes on the principles and application of recent rapid methods for the detection of foodborne bacterial pathogens. Detection methods included are simple polymerase chain reaction (PCR), multiplex PCR, real-time PCR, nucleic acid sequence-based amplification (NASBA), loop-mediated isothermal amplification (LAMP) and oligonucleotide DNA microarray which classified as nucleic acid-based methods; optical, electrochemical and mass-based biosensors which classified as biosensor-based methods; enzyme-linked immunosorbent assay (ELISA) and lateral flow immunoassay which classified as immunological-based methods. In general, rapid detection methods are generally time-efficient, sensitive, specific and labor-saving. The developments of rapid detection methods are vital in prevention and treatment of foodborne diseases.
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Affiliation(s)
- Jodi Woan-Fei Law
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University MalaysiaSelangor Darul Ehsan, Malaysia
- School of Science, Monash University MalaysiaSelangor Darul Ehsan, Malaysia
| | - Nurul-Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Centre, Bandar Tun RazakKuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of MalayaKuala Lumpur, Malaysia
| | - Learn-Han Lee
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University MalaysiaSelangor Darul Ehsan, Malaysia
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Bai Z, Luo Y, Xu W, Gao H, Han P, Liu T, Wang H, Chen A, Huang K. Development of a new fluorescence immunochromatography strip for detection of chloramphenicol residues in chicken muscles. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:3743-7. [PMID: 23681760 DOI: 10.1002/jsfa.6232] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 05/05/2013] [Accepted: 05/16/2013] [Indexed: 05/26/2023]
Abstract
BACKGROUND Chloramphenicol (CAP), an antimicrobial drug that is widely used in animal feed, would have a negative effect on human health due to its low elimination rate and relatively high residue in animal food. It is important to develop a rapid and economic method to determine CAP in animal food to ensure that human health is not affected. RESULTS A new fluorescence immunochromatography strip was developed and established for the detection of CAP residue in chicken muscles for the first time. A CAP-bovine serum albumin conjugate, monoclonal antibody and polyclonal antibody against CAP were applied to constitute a fluorescence immunochromatography strip. The fluorescence intensity was detected by a charge-coupled device scanner and transformed to a digital value. The CAP linearity working range was from 0.1 ng mL(-1) to 20 ng mL(-1) with a limit of detection of 0.1 ng mL(-1) within 10 min. The performance of the strip assay was compared with a commercial ELISA kit and the correlation coefficient was 0.99, which indicated that the new strip assay had a good quantification ability for CAP. CONCLUSION The fluorescence immunochromatography strip was successfully applied to the detection of CAP residues in chicken samples. To our knowledge, it is the first report regarding the development of a fluorescence immunochromatography method for screening CAP in animal samples.
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Affiliation(s)
- Zhihong Bai
- Laboratory of Food Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China; National Engineering Research Center for Beijing Biochip Technology, 18 Life Science Parkway, Changping District, Beijing, 102206, China; CapitalBio Corporation, 18 Life Science Parkway, Changping District, Beijing, 102206, China
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Yonekita T, Fujimura T, Morishita N, Matsumoto T, Morimatsu F. Simple, rapid, and reliable detection of Escherichia coli O26 using immunochromatography. J Food Prot 2013; 76:748-54. [PMID: 23643115 DOI: 10.4315/0362-028x.jfp-12-423] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Shiga toxin-producing Escherichia coli (STEC) O26 has been increasingly associated with diarrheal disease all over the world. We developed an immunochromatographic (ic) strip for the rapid detection of E. coli O26 in food samples. To determine the specificity of the IC strip, pure cultures of 67 E. coli and 22 non-E. coli strains were tested with the IC strip. The IC strip could detect all (18 of 18) E. coli O26 strains tested and did not react with strains of any other E. coli serogroup or non-E. coli strains tested (0 of 71). The minimum detection limits for E. coli O26 were 2.2 × 10(3) to 1.0 × 10(5) cfu/ml. To evaluate the ability of the IC strip to detect E. coli O26 in food, 25-g food samples (ground beef, beef liver, ground chicken, alfalfa sprout, radish sprout, spinach, natural cheese, and apple juice) were spiked with E. coli O26. The IC strip was able to detect E. coli O26 at very low levels (approximately 1 cfu/25 g of food samples) after an 18-h enrichment, and the IC strip results were in 100% agreement with the results of the culture method and pcr assay. When 115 meat samples purchased from supermarkets were tested, 5 were positive for E. coli O26 with the IC strip; these results were confirmed with a pcr assay. These results suggest that the IC strip is a useful tool for detecting E. coli O26 in food samples.
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Affiliation(s)
- Taro Yonekita
- R&D Center, Nippon Meat Packers, Inc., 3-3 Midorigahara, Tsukuba, Ibaraki 300-2646, Japan.
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Development of a novel multiplex lateral flow assay using an antimicrobial peptide for the detection of Shiga toxin-producing Escherichia coli. J Microbiol Methods 2013; 93:251-6. [PMID: 23523969 DOI: 10.1016/j.mimet.2013.03.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/01/2013] [Accepted: 03/11/2013] [Indexed: 11/22/2022]
Abstract
The binding capacity of peptides with broad antimicrobial activity, or antimicrobial peptides (AMPs), to microbes has recently been applied to the specific detection of bacteria and viruses. We established a novel lateral flow assay (LFA) that combines AMPs labeled with colloidal gold and a target-specific antibody immobilized on a nitrocellulose membrane. α-Helical AMPs, especially cecropin P1 (CP1), magainin 2 (MG2), and ceratotoxin A (CtxA), were shown to have optimal properties as probes in LFA. We also established a multiplex LFA for the simultaneous detection and identification of three serogroups of Shiga toxin-producing Escherichia coli (STEC) using the CP1 probe with polyclonal antibodies anti-O157, anti-O26, and anti-O111. Each serogroup of E. coli could easily and rapidly be detected by multiplex LFA using CP1 and each was clearly visualized in a different position on the LFA strip. The multiplex LFA could detect all tested E. coli strains from serogroups O157 (22/22), O26 (17/17), and O111 (7/7), and the detection limit was 10(4)CFU/mL. No other serogroups of E. coli, including STEC O45, O91, O103, O121, and O145, or non-E. coli strains, reacted. The multiplex LFA could detect E. coli O157, O26, and O111 in food samples at very low levels (6.3, 2.9, and 5.6 CFU per 25 g of ground beef, respectively) after 18-h enrichment, and these results were in accordance with the results of the culture method, immunochromatography (IC) strip, and PCR. Given the broad binding capacity, AMP probes in combination with specific antibodies in the novel multiplex LFA may have the potential to detect various microbes simultaneously with identification on a single strip.
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Qi H, Zhong Z, Zhou HX, Deng CY, Zhu H, Li JF, Wang XL, Li FR. A rapid and highly sensitive protocol for the detection of Escherichia coli O157:H7 based on immunochromatography assay combined with the enrichment technique of immunomagnetic nanoparticles. Int J Nanomedicine 2011; 6:3033-9. [PMID: 22163159 PMCID: PMC3235026 DOI: 10.2147/ijn.s25684] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Escherichia coli O157:H7 (E. coli O157:H7) is an important pathogenic bacterium that threatens human health. A rapid, simple, highly sensitive, and specific method for the detection of E. coli O157:H7 is necessary. METHODS In the present study, immunomagnetic nanoparticles (IMPs) were prepared with nanopure iron as the core, coated with E. coli O157:H7 polyclonal antibodies. These IMPs were used in combination with immunochromatographic assay (ICA) and used to establish highly sensitive and rapid kits (IMPs+ICA) to detect E. coli O157:H7. The kits were then used to detect E. coli O157:H7 in 150 food samples and were compared with conventional ICA to evaluate their efficacy. RESULTS The average diameter of IMPs was 56 nm and the amount of adsorbed antibodies was 106.0 μg/mg. The sensitivity of ICA and IMPs+ICA was 10(5) colony-forming units/mL and 10(3) CFUs/mL, respectively, for purified E. coli O157:H7 solution. The sensitivity of IMPs+ICA was increased by two orders, and its specificity was similar to ICA. CONCLUSION The kits have the potential to offer important social and economic benefits in the screening, monitoring, and control of food safety.
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Affiliation(s)
- Hui Qi
- Clinical Medical Research Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen, People's Republic of China
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Ultrasensitive nanogold probe-based immunochromatographic assay for simultaneous detection of total aflatoxins in peanuts. Biosens Bioelectron 2011; 26:2877-82. [DOI: 10.1016/j.bios.2010.11.031] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 10/30/2010] [Accepted: 11/23/2010] [Indexed: 11/23/2022]
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Ngom B, Guo Y, Wang X, Bi D. Development and application of lateral flow test strip technology for detection of infectious agents and chemical contaminants: a review. Anal Bioanal Chem 2010; 397:1113-35. [PMID: 20422164 DOI: 10.1007/s00216-010-3661-4] [Citation(s) in RCA: 248] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 03/10/2010] [Accepted: 03/16/2010] [Indexed: 01/10/2023]
Abstract
Recent progress in the laboratory has been a result of improvements in rapid analytical techniques. An update of the applications of lateral flow tests (also called immunochromatographic assay or test strip) is presented in this review manuscript. We emphasized the description of this technology in the detection of a variety of biological agents and chemical contaminants (e.g. veterinary drugs, toxins and pesticides). It includes outstanding data, such as sample treatment, sensitivity, specificity, accuracy and reproducibility. Lateral flow tests provide advantages in simplicity and rapidity when compared to the conventional detection methods.
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Affiliation(s)
- Babacar Ngom
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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Zhao X, Li Y, Wang L, You L, Xu Z, Li L, He X, Liu Y, Wang J, Yang L. Development and application of a loop-mediated isothermal amplification method on rapid detection Escherichia coli O157 strains from food samples. Mol Biol Rep 2009; 37:2183-8. [PMID: 19685165 DOI: 10.1007/s11033-009-9700-6] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 07/29/2009] [Indexed: 11/29/2022]
Abstract
We developed and evaluated the specificity and sensitivity of a loop-mediated isothermal amplification (LAMP) method for rapid detection of the food-borne Escherichia coli O157 strains. Six primers, including outer primers, inner primers and loop primers, were specially designed for recognizing eight distinct sequences on three targets, which were rfbE, stx1 and stx2. The detection limits were found to be 100, 100 and 10 fg DNA/tube for rfbE, stx1 and stx2, respectively. Application of LAMP assays were performed on 417 food-borne E. coli strains, the sensitivity of LAMP assays for the rfbE, stx1 and stx2 was 100, 95.3 and 96.3%, and the negative predictive value was 100, 96.7 and 97.1%, respectively; with a 100% specificity and positive predictive value for all three targets.
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Affiliation(s)
- Xihong Zhao
- College of Light Industry and Food Sciences, South China University of Technology, 510640 Guangzhou, China
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Shim WB, Choi JG, Kim JY, Yang ZY, Lee KH, Kim MG, Ha SD, Kim KS, Kim KY, Kim CH, Eremin SA, Chung DH. Enhanced rapidity for qualitative detection of Listeria monocytogenes using an enzyme-linked immunosorbent assay and immunochromatography strip test combined with immunomagnetic bead separation. J Food Prot 2008; 71:781-9. [PMID: 18468033 DOI: 10.4315/0362-028x-71.4.781] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An enzyme-linked immunosorbent assay (ELISA), immunochromatography (ICG) strip test, and immunomagnetic bead separation (IMBS) system based on a monoclonal antibody were individually developed for the detection and isolation of Listeria monocytogenes in meat samples. The three methods showed a strong reaction with Listeria species and a weak reaction with Staphylococcus aureus. To increase the rapidity of L. monocytogenes detection, combinations of the ELISA and ICG strip test with the IMBS system (ELISA-IMBS and ICG-IMBS) were investigated. In comparative analyses of artificially inoculated meat and samples of processed meat, the ELISA and ICG strip test required 24 h of enrichment time to detect the inoculated meat samples with > or =1 X 10(2) CFU/10 g, whereas the ELISA-IMBS and ICG-IMBS required only 14 h of enrichment. Analyses of naturally contaminated meat samples (30 pork samples, 20 beef samples, 26 chicken samples, 20 fish samples, and 20 processed meat samples) performed by ELISA-IMBS, ICG-IMBS, and API kit produced similar results. The ELISA-IMBS and ICG-IMBS provide a more rapid assay than the individual ELISA and the ICG strip test and are appropriate for rapid and qualitative detection of L. monocytogenes (or Listeria species) in meat samples. With the ICG-IMBS, L. monocytogenes could be detected in meat samples within 15 h and the method has potential as a rapid, cost-effective on-site screening tool for the detection of L. monocytogenes in food samples and agricultural products at a minimum detection level of approximately 100 CFU/10 g.
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Affiliation(s)
- Won-Bo Shim
- Division of Applied Life Science (Brain Korea 21 program), Graduate School of Gyeongsang National University, Chinju, Gyeongnam 660-701, Korea
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Nakasone N, Toma C, Lu Y, Iwanaga M. Development of a rapid immunochromatographic test to identify enteropathogenic and enterohemorrhagic Escherichia coli by detecting EspB. Diagn Microbiol Infect Dis 2007; 57:21-5. [PMID: 16860514 DOI: 10.1016/j.diagmicrobio.2006.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2006] [Revised: 05/19/2006] [Accepted: 05/30/2006] [Indexed: 10/24/2022]
Abstract
A rapid immunochromatographic (IC) test to identify enteropathogenic and enterohemorrhagic Escherichia coli (EPEC and EHEC, respectively) was developed to detect EspB secreted by the type III secretion system of these bacteria. The detection limit of the test system was 4 ng/mL. All 33 of 34 strains harboring the eae gene encoding intimin were positive in the IC test, and all 40 of the eae-negative strains were negative. The results showed that the sensitivity was 96.9% and specificity was 100%. The IC test also detected EspB in a stool sample artificially supplemented with 60 ng EspB/mL. The IC test for the detection of EspB may be a practical method to define EPEC or EHEC both in clinical laboratories and the field.
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Affiliation(s)
- Noboru Nakasone
- Division of Bacterial Pathogenesis, Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan.
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KIM JW, LEE YJ, HAN MY, BAE DH, JUNG SC, OH JS, HA GW, CHO BK. Evaluation of Immunochromatographic Assay for Serodiagnosis of Brucella canis. J Vet Med Sci 2007; 69:1103-7. [DOI: 10.1292/jvms.69.1103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Jong Wan KIM
- National Veterinary Research and Quarantine Service
| | - Young Ju LEE
- College of Veterinary Medicine, Kyungpook National University
| | - Moo Yeol HAN
- College of Veterinary Medicine, Kyungpook National University
| | - Dong Hwa BAE
- College of Veterinary Medicine, Kyungpook National University
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Yan Z, Zhou L, Zhao Y, Wang J, Huang L, Hu K, Liu H, Wang H, Guo Z, Song Y, Huang H, Yang R. Rapid quantitative detection of Yersinia pestis by lateral-flow immunoassay and up-converting phosphor technology-based biosensor. SENSORS AND ACTUATORS. B, CHEMICAL 2006; 119:656-663. [PMID: 32288237 PMCID: PMC7125792 DOI: 10.1016/j.snb.2006.01.029] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2005] [Revised: 01/13/2006] [Accepted: 01/16/2006] [Indexed: 05/07/2023]
Abstract
Up-converting phosphor technology (UPT)-based lateral-flow immunoassay has been developed for quantitative detection of Yersinia pestis rapidly and specifically. In this assay, 400 nm up-converting phosphor particles were used as the reporter. A sandwich immumoassay was employed by using a polyclonal antibody against F1 antigen of Y. pestis immobilized on the nitrocellulose membrane and the same antibody conjugated to the UPT particles. The signal detection of the strips was performed by the UPT-based biosensor that could provide a 980 nm IR laser to excite the phosphor particles, then collect the visible luminescence emitted by the UPT particles and finally convert it to the voltage as a signal. V T and V C stand for the multiplied voltage units for the test and the control line, respectively, and the ratio V T/V C is directly proportional to the number of Y. pestis in a sample. We observed a good linearity between the ratio and log CFU/ml of Y. pestis above the detection limit, which was approximately 104 CFU/ml. The precision of the intra- and inter-assay was below 15% (coefficient of variation, CV). Cross-reactivity with related Gram-negative enteric bacteria was not found. The UPT-LF immunoassay system presented here takes less than 30 min to perform from the sample treatment to the data analysis. The current paper includes only preliminary data concerning the biomedical aspects of the assay, but is more concentrated on the technical details of establishing a rapid manual assay using a state-of-the-art label chemistry.
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Affiliation(s)
- Zhongqiang Yan
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Lei Zhou
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Yongkai Zhao
- Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences, Shanghai 201800, PR China
| | - Jing Wang
- National Academy of Inspection and Quarantine, Beijing 100025, PR China
| | - Lihua Huang
- Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences, Shanghai 201800, PR China
| | - Kongxin Hu
- National Academy of Inspection and Quarantine, Beijing 100025, PR China
| | - Haihong Liu
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Hong Wang
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Zhaobiao Guo
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Yajun Song
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
| | - Huijie Huang
- Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences, Shanghai 201800, PR China
| | - Ruifu Yang
- Laboratory of Analytical Microbiology, State Key Laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing 100071, PR China
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