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Chen S. Diagnosis, Characterization and Treatment of Emerging Pathogens. Microorganisms 2023; 11:2032. [PMID: 37630592 PMCID: PMC10459198 DOI: 10.3390/microorganisms11082032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Emerging infectious diseases are perhaps the most rapidly spreading diseases [...].
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Affiliation(s)
- Shengxi Chen
- Biodesign Center for Bioenergetics, Arizona State University, Tempe, AZ 85287, USA
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2
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Li H, Te SH, Tavakoli Y, Zhang J, Yew-Hoong Gin K, He Y. Rapid detection methods and modelling simulations provide new insights into cyanobacteria detection and bloom management in a tropical reservoir. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116730. [PMID: 36399808 DOI: 10.1016/j.jenvman.2022.116730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 09/18/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The increasing occurrence of cyanobacteria blooms is of global concern, and is often associated with environmental and socio-economic problems, such as degenerated ecosystems and aquaculture impairment. The diazotrophic cyanobacterium Raphidiopsis raciborskii (R. raciborskii) grows rapidly in the tropics, and produces the toxin, cylindrospermopsin (CYN), which has harmful effects on aquatic organisms. Thus, to protect water quality and ecosystem, it is essential to have rapid and reliable methods for cyanobacteria and R. raciborskii detection and prediction so that early warning can be provided for management. Molecular assays, such as PCR, real-time quantitative PCR (qPCR), two-step PCR assays are accurate and widely used, but still require several hours from sample preparation to data analysis. In this study, insulated isothermal PCR (iiPCR) assays in conjunction with fast DNA extraction method, were developed and verified as a rapid detection assay in detecting cyanobacteria and R. raciborskii within 50 min, and also with high detection accuracy (98.8%) and the overall high agreement level (98.8%, k = 97.5%)) comparing to conventional qPCR assay. However, the limitation of the iiPCR assay is that it only generates qualitative results. Therefore, the quantified iiPCR assay, named as A-iiPCR, by coupling iiPCR device with fluorescence signal catching and interpretation instrument (Andor spectrometer with Solis spectroscopy software) was developed and verified with in situ environmental samples. The fluorescence intensity decreased accordingly with the drop of DNA concentration until reaching 1.32 ng/μL. Also, Delft 3D modelling was established to simulate R. raciborskii change in predicting spatial and temporal variabilities for reservoir management, as the simulated R. raciborskii concentration was the highest at sampling site 1, as well as temporally highest in April and October, posing as the most high-risk location and time periods for R. raciborskii bloom-forming requiring corresponding governance measures.
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Affiliation(s)
- Han Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China; NUS Environmental Research Institute (E2S2-CREATE), National University of Singapore, Singapore
| | - Shu Harn Te
- NUS Environmental Research Institute (E2S2-CREATE), National University of Singapore, Singapore
| | - Yasaman Tavakoli
- NUS Environmental Research Institute (E2S2-CREATE), National University of Singapore, Singapore
| | - Jingjie Zhang
- NUS Environmental Research Institute (NERI), National University of Singapore, Singapore
| | - Karina Yew-Hoong Gin
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore; NUS Environmental Research Institute (E2S2-CREATE), National University of Singapore, Singapore.
| | - Yiliang He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.
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3
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Rapid Detection of Fusarium oxysporum Using Insulated Isothermal PCR and a Rapid, Simple DNA Preparation Protocol. Int J Mol Sci 2022; 23:ijms232113253. [PMID: 36362048 PMCID: PMC9659253 DOI: 10.3390/ijms232113253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/18/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022] Open
Abstract
We developed an insulated isothermal PCR (iiPCR) method for the efficient and rapid detection of Fusarium oxysporum (Fo), which is a fungus that infects various hosts and causes severe crop losses. The Fo iiPCR method was sensitive enough to detect up to 100 copies of standard DNA template and 10 fg of Fo genomic DNA. In addition, it could directly detect 1 pg of mycelium and 10 spores of Fo without DNA extraction. Our study compared the performance of Fo iiPCR to that of three published in planta molecular detection methods—conventional PCR, SYBR green-based real-time PCR, and hydrolysis probe-based real-time PCR—in field detection of Fo. All diseased field samples yielded positive detection results with high reproducibility when subjected to an Fo iiPCR test combined with a rapid DNA extraction protocol compared to Fo iiPCR with an automated magnetic bead-based DNA extraction protocol. Intraday and interday assays were performed to ensure the stability of this new rapid detection method. The results of detection of Fo in diseased banana pseudostem samples demonstrated that this new rapid detection method was suitable for field diagnosis of Fusarium wilt and had high F1 scores for detection (the harmonic mean of precision and recall of detection) for all asymptomatic and symptomatic Fo-infected banana samples. In addition, banana samples at four growth stages (seedling, vegetative, flowering and fruiting, and harvesting) with mild symptoms also showed positive detection results. These results indicate that this new rapid detection method is a potentially efficient procedure for on-site detection of Fo.
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Liu LT, Chen CH, Lin PC, Tsai CY, Hsu MC, Huang BY, Tsai YY, Tsai JJ. Evaluation of a new NS1 rapid diagnostic test using a single acute-phase serum panel collected during the largest dengue outbreak in Taiwan history in 2015. Kaohsiung J Med Sci 2021; 38:385-389. [PMID: 34931760 DOI: 10.1002/kjm2.12490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/15/2021] [Accepted: 11/25/2021] [Indexed: 11/10/2022] Open
Abstract
Dengue virus (DENV) infection results mostly from the bites of virus-carrying Aedes mosquitoes, which results in dengue fever (DF) with or without warning signs, severe dengue, or asymptomatic infections in humans. For point-of care identification of DENV-infected patients, a rapid diagnostic test (RDT) for DENV nonstructural protein 1 (NS1) has been developed to achieve early diagnosis and timely clinical management. We evaluated the performance of a new commercially available dengue NS1 RDT AsiaGen Dengue NS1 Antigen Rapid Diagnosis Test using real-time qRT-PCR as a reference method and compared the results with SD BIOLINE Dengue NS1 Ag using a single acute-phase serum panel collected during the largest dengue outbreak in the history of Taiwan in 2015. The results suggested that the sensitivity and specificity of AsiaGen Dengue NS1 Antigen RDT (96.9% and 100%) were similar to those of SD BIOLINE Dengue NS1 RDT (100% and 100%) for detection in the acute phase of DENV-2 infection. The results suggested that the sensitivity of both RDTs was similar (95.4% ~ 100%) for the sera collected at less than or equal to three days postsymptom onset (PSO). Our results suggested that the two DENV NS1 RDTs used in this study were promising for the timely diagnosis of DENV infection during dengue outbreaks, at least for DENV-2 in areas where authorized medical laboratories are not available or medical resources are limited. However, the performance of AsiaGen DENV NS1 RDTs in the detection of primary/secondary infections and infection by serotypes of DENV other than DENV-2 requires further investigation.
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Affiliation(s)
- Li-Teh Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medical Technology, Chung-Hwa University of Medical Technology, Tainan City, Taiwan
| | - Chun-Hong Chen
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, Taiwan.,National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Ping-Chang Lin
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ching-Yi Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Miao-Chen Hsu
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Bo-Yi Huang
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yan-Yi Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jih-Jin Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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5
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Kabir MA, Zilouchian H, Younas MA, Asghar W. Dengue Detection: Advances in Diagnostic Tools from Conventional Technology to Point of Care. BIOSENSORS 2021; 11:206. [PMID: 34201849 PMCID: PMC8301808 DOI: 10.3390/bios11070206] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/05/2021] [Accepted: 06/15/2021] [Indexed: 06/02/2023]
Abstract
The dengue virus (DENV) is a vector-borne flavivirus that infects around 390 million individuals each year with 2.5 billion being in danger. Having access to testing is paramount in preventing future infections and receiving adequate treatment. Currently, there are numerous conventional methods for DENV testing, such as NS1 based antigen testing, IgM/IgG antibody testing, and Polymerase Chain Reaction (PCR). In addition, novel methods are emerging that can cut both cost and time. Such methods can be effective in rural and low-income areas throughout the world. In this paper, we discuss the structural evolution of the virus followed by a comprehensive review of current dengue detection strategies and methods that are being developed or commercialized. We also discuss the state of art biosensing technologies, evaluated their performance and outline strategies to address challenges posed by the disease. Further, we outline future guidelines for the improved usage of diagnostic tools during recurrence or future outbreaks of DENV.
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Affiliation(s)
- Md Alamgir Kabir
- Asghar-Lab, Micro and Nanotechnology in Medicine, College of Engineering and Computer Science, Boca Raton, FL 33431, USA; (M.A.K.); (H.Z.)
- Department of Computer & Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Hussein Zilouchian
- Asghar-Lab, Micro and Nanotechnology in Medicine, College of Engineering and Computer Science, Boca Raton, FL 33431, USA; (M.A.K.); (H.Z.)
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Waseem Asghar
- Asghar-Lab, Micro and Nanotechnology in Medicine, College of Engineering and Computer Science, Boca Raton, FL 33431, USA; (M.A.K.); (H.Z.)
- Department of Computer & Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
- Department of Biological Sciences (Courtesy Appointment), Florida Atlantic University, Boca Raton, FL 33431, USA
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6
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Mori A, Pomari E, Deiana M, Perandin F, Caldrer S, Formenti F, Mistretta M, Orza P, Ragusa A, Piubelli C. Molecular techniques for the genomic viral RNA detection of West Nile, Dengue, Zika and Chikungunya arboviruses: a narrative review. Expert Rev Mol Diagn 2021; 21:591-612. [PMID: 33910444 DOI: 10.1080/14737159.2021.1924059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Molecular technology has played an important role in arboviruses diagnostics. PCR-based methods stand out in terms of sensitivity, specificity, cost, robustness, and accessibility, and especially the isothermal amplification (IA) method is ideal for field-adaptable diagnostics in resource-limited settings (RLS).Areas covered: In this review, we provide an overview of the various molecular methods for West Nile, Zika, Dengue and Chikungunya. We summarize literature works reporting the assessment and use of in house and commercial assays. We describe limitations and challenges in the usage of methods and opportunities for novel approaches such as NNext-GenerationSequencing (NGS).Expert opinion: The rapidity and accuracy of differential diagnosis is essential for a successful clinical management, particularly in co-circulation area of arboviruses. Several commercial diagnostic molecular assays are available, but many are not affordable by RLS and not usable as Point-of-care/Point-of-need (POC/PON) such as RReal-TimeRT-PCR, Array-based methods and NGS. In contrast, the IA-based system fits better for POC/PON but it is still not ideal for the multiplexing detection system. Improvement in the characterization and validation of current molecular assays is needed to optimize their translation to the point of care.
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Affiliation(s)
- Antonio Mori
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy.,Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Elena Pomari
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Michela Deiana
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Francesca Perandin
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Sara Caldrer
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Fabio Formenti
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Manuela Mistretta
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Pierantonio Orza
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Andrea Ragusa
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
| | - Chiara Piubelli
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy
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Chang PL, Lin CY, Chen CP, Lin YC, Hu HC, Cheng SH, Cheng CY. Clinical validation of an automated reverse transcription-insulated isothermal PCR assay for the detection of severe acute respiratory syndrome coronavirus 2. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2021; 54:522-526. [PMID: 33582073 PMCID: PMC7849545 DOI: 10.1016/j.jmii.2021.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/27/2022]
Abstract
To determine clinical performance of the single-target SARS-CoV-2 orf 1 ab reverse transcription-insulated isothermal PCR (RT-iiPCR) assay, the positive percentage agreement between this assay and a laboratory real-time RT-PCR assay was 96.8% (30 of 31; 95% confidence interval [CI], 90.5%-100%) and the negative percentage agreement was 97.1% (67 of 69; 95% CI, 93.1%-100%).
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Affiliation(s)
- Pai-Ling Chang
- Department of Laboratory Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan.
| | - Chia-Yi Lin
- Department of Laboratory Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Cheng-Pin Chen
- Department of Infectious Diseases, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; School of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Chun Lin
- Department of Infectious Diseases, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Hui-Chun Hu
- Department of Nursing, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Shu-Hsing Cheng
- Department of Infectious Diseases, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; School of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Chien-Yu Cheng
- Department of Infectious Diseases, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; School of Public Health, National Yang-Ming University, Taipei, Taiwan.
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8
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Paul R, Ostermann E, Wei Q. Advances in point-of-care nucleic acid extraction technologies for rapid diagnosis of human and plant diseases. Biosens Bioelectron 2020; 169:112592. [PMID: 32942143 PMCID: PMC7476893 DOI: 10.1016/j.bios.2020.112592] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022]
Abstract
Global health and food security constantly face the challenge of emerging human and plant diseases caused by bacteria, viruses, fungi, and other pathogens. Disease outbreaks such as SARS, MERS, Swine Flu, Ebola, and COVID-19 (on-going) have caused suffering, death, and economic losses worldwide. To prevent the spread of disease and protect human populations, rapid point-of-care (POC) molecular diagnosis of human and plant diseases play an increasingly crucial role. Nucleic acid-based molecular diagnosis reveals valuable information at the genomic level about the identity of the disease-causing pathogens and their pathogenesis, which help researchers, healthcare professionals, and patients to detect the presence of pathogens, track the spread of disease, and guide treatment more efficiently. A typical nucleic acid-based diagnostic test consists of three major steps: nucleic acid extraction, amplification, and amplicon detection. Among these steps, nucleic acid extraction is the first step of sample preparation, which remains one of the main challenges when converting laboratory molecular assays into POC tests. Sample preparation from human and plant specimens is a time-consuming and multi-step process, which requires well-equipped laboratories and skilled lab personnel. To perform rapid molecular diagnosis in resource-limited settings, simpler and instrument-free nucleic acid extraction techniques are required to improve the speed of field detection with minimal human intervention. This review summarizes the recent advances in POC nucleic acid extraction technologies. In particular, this review focuses on novel devices or methods that have demonstrated applicability and robustness for the isolation of high-quality nucleic acid from complex raw samples, such as human blood, saliva, sputum, nasal swabs, urine, and plant tissues. The integration of these rapid nucleic acid preparation methods with miniaturized assay and sensor technologies would pave the road for the "sample-in-result-out" diagnosis of human and plant diseases, especially in remote or resource-limited settings.
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Affiliation(s)
- Rajesh Paul
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Emily Ostermann
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Qingshan Wei
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695, USA; Emerging Plant Disease and Global Food Security Cluster, North Carolina State University, Raleigh, NC, 27695, USA.
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Liu LT, Chen CH, Tsai CY, Lin PC, Hsu MC, Huang BY, Wang YH, Tsai JJ. Evaluation of rapid diagnostic tests to detect dengue virus infections in Taiwan. PLoS One 2020; 15:e0239710. [PMID: 32991592 PMCID: PMC7524001 DOI: 10.1371/journal.pone.0239710] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/12/2020] [Indexed: 01/22/2023] Open
Abstract
Early diagnosis is important for the clinical management of diseases caused by dengue virus (DENV) infections. We investigated the performance of three commercially available DENV nonstructural protein 1 (NS1) rapid diagnostic tests (RDTs) using 173 acute-phase sera collected from dengue fever-suspected patients during the 2012-2013 DENV outbreak in Taiwan. The results of the NS1 RDTs were compared with those of qRT-PCR to calculate the sensitivity and specificity of the NS1 RDTs. The anti-DENV IgM and IgG RDT results were included to increase the probability of detecting acute DENV infection. The anti-DENV IgM/IgG RDT results were also compared with those of IgM/IgG captured ELISA. The sera from DENV qRT-PCR-positive patients were subjected to NS1 RDTs, as well as IgM/IgG captured ELISA. These results suggested that there was no significant difference in the sensitivities of the three commercially available DNEV NS1 RDTs; the SD NS1 RDT results showed the highest agreement with the qRT-PCR reference results, followed in order by the Bio-Rad and CTK NS1 RDT results when the specificity was considered. Inclusion of the IgM or IgG RDT results increased the likelihood of diagnosing either a primary or secondary DENV infection. NS1 RDTs were more sensitive for the detection of primary infections than secondary infections, related to DENV viremia levels determined by qRT-PCR. These results suggested that anti-DENV antibodies reduced the sensitivity of NS1 rapid tests. We also analyzed the sensitivity for the detection of different DENV serotypes, and the results suggested that the NS1 RDTs used in this study were valuable for rapid screening of acute DENV infection with DENV-1, DENV-2 and DENV-3. Our results suggest that the NS1 RDT is a good alternative to qRT-PCR analysis for timely dengue disease management and prevention in dengue-endemic regions where medical resources are lacking or during large dengue outbreaks. However, the relatively low sensitivity for DENV-4 might miss the detection of DENV-4-infected cases.
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Affiliation(s)
- Li-Teh Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medical Technology, Chung-Hwa University of Medical Technology, Tainan City, Taiwan
| | - Chun-Hong Chen
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Ching-Yi Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ping-Chang Lin
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Miao-Chen Hsu
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Bo-Yi Huang
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ying-Hui Wang
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jih-Jin Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Cheng L, Liu WL, Li HH, Su MP, Wu SC, Chen HW, Pan CY, Tsai JJ, Chen CH. Releasing Intracellular NS1 from Mosquito Cells for the Detection of Dengue Virus-Infected Mosquitoes. Viruses 2020; 12:v12101105. [PMID: 33003584 PMCID: PMC7599882 DOI: 10.3390/v12101105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/23/2020] [Accepted: 09/28/2020] [Indexed: 12/19/2022] Open
Abstract
Dengue virus (DENV), the pathogen that causes dengue fever, is mainly transmitted by Aedes aegypti. Surveillance of infected mosquitoes is a major component of integrated mosquito control methods for reducing the risk of vector-born disease outbreaks. However, a specialized rapid test for DENV detection in mosquitoes is not currently available. Utilizing immunoblotting, we found that the secretion of NS1 from both a DENV-infected mosquito cell line and mosquito bodies was below the detection threshold. However, when Triton X-100 was used to lyse infected mosquitoes, intracellular NS1 was released, and could then be effectively detected by the NS1 rapid test. The distribution of DENV NS1 in intrathoracically infected mosquitoes was different from that of orally infected mosquitoes. Next, we performed sensitivity tests by bisecting mosquitoes longitudinally; one half of each mosquito was subjected to the NS1 rapid test while the other half was used for qPCR confirmation. This modified test had a sensitivity of nearly 90% from five days post-infection onwards, while DENV had escaped from the midgut barrier. This adapted test offers a valuable, easy-to-use tool for mosquito surveillance, which is a crucial component of DENV disease control.
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Affiliation(s)
- Lie Cheng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350401, Taiwan; (L.C.); (H.-H.L.); (H.-W.C.)
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan
| | - Wei-Liang Liu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 350401, Taiwan; (W.-L.L.); (S.-C.W.)
| | - Hsing-Han Li
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350401, Taiwan; (L.C.); (H.-H.L.); (H.-W.C.)
- Institution of Biotechnology, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Matthew P. Su
- Department of Biological Science, Nagoya University, Nagoya 464-8601, Japan;
| | - Shih-Cheng Wu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 350401, Taiwan; (W.-L.L.); (S.-C.W.)
| | - Hsin-Wei Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350401, Taiwan; (L.C.); (H.-H.L.); (H.-W.C.)
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 110001, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan
| | - Chao-Ying Pan
- Department of Health, Kaohsiung City Government, Kaohsiung 800852, Taiwan;
| | - Jih-Jin Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan
- Correspondence: (J.-J.T.); (C.-H.C.)
| | - Chun-Hong Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350401, Taiwan; (L.C.); (H.-H.L.); (H.-W.C.)
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 350401, Taiwan; (W.-L.L.); (S.-C.W.)
- Correspondence: (J.-J.T.); (C.-H.C.)
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11
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Wiwanitkit V. Challenges in the diagnosis of dengue. Future Virol 2020. [DOI: 10.2217/fvl-2020-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Viroj Wiwanitkit
- Department of Community Medicine, Dr DY Patil University, Pune, India
- Department of Tropical Medicine, Hainan Medical University, Haikou, China
- Department of Medical Science, University of Nis, Nis, Serbia
- Department of Biological Science, Joseph Ayobabalola Univesity, Ikeji-Arakji, Nigeria
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12
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Stittleburg V, Rojas A, Cardozo F, Muñoz FM, Asturias EJ, Olson D, Paniaga-Avila A, Abeynayake J, Anderson EJ, Waggoner JJ. Dengue Virus and Yellow Fever Virus Detection Using Reverse Transcription-Insulated Isothermal PCR and Comparison with Real-Time RT-PCR. Am J Trop Med Hyg 2020; 103:157-159. [PMID: 32458782 DOI: 10.4269/ajtmh.19-0892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Real-time reverse transcriptase PCR (rRT-PCR) is the most accurate method for the detection of dengue virus (DENV) and yellow fever virus (YFV) in acute illness. However, performing rRT-PCR is not feasible for many laboratories in regions of endemicity. The current study compared new reverse transcription-insulated isothermal PCRs (the POCKIT DENV and YFV reagent sets) with laboratory-developed rRT-PCRs for both viruses using clinical samples and viral strains from different endemic regions. Sensitivity and specificity of the POCKIT DENV Reagent Set were 87.2% (68/78 samples) and 98.2% of samples (54/55), respectively. The YFV reagent set demonstrated sensitive detection of YFV RNA from six viral strains down to an estimated concentration of 2.5 log10 copies/mL and proved to be specific for YFV. Although the POCKIT assays require RNA extraction, they may provide accurate and less-complex options for molecular testing in laboratory settings where rRT-PCR is not practical.
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Affiliation(s)
- Victoria Stittleburg
- Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia
| | - Alejandra Rojas
- Departamento de Producción, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Fátima Cardozo
- Departamento de Salud Pública, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Flor M Muñoz
- Departments of Pediatrics and Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
| | - Edwin J Asturias
- Fundación para la Salud Integral de los Guatemaltecos, FUNSALUD, Quetzaltenango, Guatemala.,Division of Infectious Diseases and Epidemiology, Department of Pediatrics, University of Colorado at Denver, Aurora, Colorado
| | - Daniel Olson
- Division of Infectious Diseases and Epidemiology, Department of Pediatrics, University of Colorado at Denver, Aurora, Colorado
| | | | | | - Evan J Anderson
- Division of Infectious Diseases, Department of Pediatrics, Emory University, Atlanta, Georgia.,Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia
| | - Jesse J Waggoner
- Department of Global Health, Rollins School of Public Health, Atlanta, Georgia.,Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia
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