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Muzammil K, Rayyani S, Abbas Sahib A, Gholizadeh O, Naji Sameer H, Jwad Kazem T, Badran Mohammed H, Ghafouri Kalajahi H, Zainul R, Yasamineh S. Recent Advances in Crimean-Congo Hemorrhagic Fever Virus Detection, Treatment, and Vaccination: Overview of Current Status and Challenges. Biol Proced Online 2024; 26:20. [PMID: 38926669 PMCID: PMC11201903 DOI: 10.1186/s12575-024-00244-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/16/2024] [Indexed: 06/28/2024] Open
Abstract
Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne virus, and zoonosis, and affects large regions of Asia, Southwestern and Southeastern Europe, and Africa. CCHFV can produce symptoms, including no specific clinical symptoms, mild to severe clinical symptoms, or deadly infections. Virus isolation attempts, antigen-capture enzyme-linked immunosorbent assay (ELISA), and reverse transcription polymerase chain reaction (RT-PCR) are all possible diagnostic tests for CCHFV. Furthermore, an efficient, quick, and cheap technology, including biosensors, must be designed and developed to detect CCHFV. The goal of this article is to offer an overview of modern laboratory tests available as well as other innovative detection methods such as biosensors for CCHFV, as well as the benefits and limits of the assays. Furthermore, confirmed cases of CCHF are managed with symptomatic assistance and general supportive care. This study examined the various treatment modalities, as well as their respective limitations and developments, including immunotherapy and antivirals. Recent biotechnology advancements and the availability of suitable animal models have accelerated the development of CCHF vaccines by a substantial margin. We examined a range of potential vaccines for CCHF in this research, comprising nucleic acid, viral particles, inactivated, and multi-epitope vaccines, as well as the present obstacles and developments in this field. Thus, the purpose of this review is to present a comprehensive summary of the endeavors dedicated to advancing various diagnostic, therapeutic, and preventive strategies for CCHF infection in anticipation of forthcoming hazards.
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Affiliation(s)
- Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, King Khalid University, Khamis Mushait Campus, Abha, 62561, Saudi Arabia
| | - Saba Rayyani
- Medical Faculty, University of Georgi, Tbilisi, Georgia
| | | | | | - Hayder Naji Sameer
- Collage of Pharmacy, National University of Science and Technology, Dhi Qar, 64001, Iraq
| | - Tareq Jwad Kazem
- Scientific Affairs Department, Al-Mustaqbal University, Hillah, Babylon, 51001, Iraq
| | - Haneen Badran Mohammed
- Optics techniques department, health and medical techniques college, Al-Noor University, Mosul, Iraq
| | | | - Rahadian Zainul
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang, Indonesia.
| | - Saman Yasamineh
- Center for Advanced Material Processing, Artificial Intelligence, and Biophysics Informatics (CAMPBIOTICS), Universitas Negeri Padang, Padang, Indonesia.
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Tian W, Zhang Y, Geng S, Wang J, Ji W, Xu Y, Gao X, Li X, Lin L, Liu Y, Song C, Chen Z, Zhang W. Evaluation of reverse transcription loop-mediated isothermal amplification assay for the detection of severe fever with thrombocytopenia syndrome in clinical laboratories: A single-center study. J Med Virol 2023; 95:e29258. [PMID: 38054542 DOI: 10.1002/jmv.29258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 10/09/2023] [Accepted: 11/12/2023] [Indexed: 12/07/2023]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an acute infectious disease prevalent in East Asia with a high mortality rate (5%-30%). Reverse transcription loop-mediated isothermal amplification (RT-LAMP), a rapid nucleic acid-based diagnostic technique, is a useful alternative for the clinical diagnosis of SFTS, particularly in resource-limited hospitals or rural clinics in SFTS virus-endemic regions. However, the actual clinical sensitivity and specificity of RT-LAMP remain unclear. This study evaluated the field application of RT-LAMP. This prospective field study included 130 patients with laboratory-confirmed SFTS from Yantai, Shandong Province, China. Two sets of RT-LAMP primers were validated, and one set of RT-LAMP assays was optimized for field detection. Nucleic acids of serially collected serum/plasma samples were identified using quantitative reverse transcription polymerase chain reaction (RT-qPCR) and RT-LAMP. In laboratory tests, we optimized the detection time of primer set 2 for the RT-LAMP to 60 min. Notably, the onsite testing of 279 plasma samples from patients with SFTS revealed that the sensitivity and specificity of the test were 81.9% and 96.3%, respectively. We also analyzed samples with different durations of the disease, and our study showed that the sensitivity of RT-LAMP detection at the beginning of admission was 89.92%. Univariate analysis showed that the detection rate of RT-LAMP was similar to that of RT-qPCR in the first 5 days of the disease course and was lower than that of RT-qPCR on Days 6 and 14-15 of the disease course. The positive detection rate in patients aged ≥ 65 years was significantly higher than that in younger age groups. RT-LAMP is a simple, suitable, and rapid clinical detection method of SFTS onsite screening. It is more suitable for screening patients in the early stages of the disease and analyzing samples obtained from patients aged ≥ 65 years before the 6th day of the disease course.
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Affiliation(s)
- Wen Tian
- Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yuanyuan Zhang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Infectious Diseases, Beijing, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shuying Geng
- Department of Infectious Diseases, Yantai City Hospital for Infectious Disease, Yantai, China
| | - Jianxin Wang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Infectious Diseases, Beijing, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wenjuan Ji
- Department of Infectious Diseases, Yantai City Hospital for Infectious Disease, Yantai, China
| | - Yanli Xu
- Department of Infectious Diseases, Yantai City Hospital for Infectious Disease, Yantai, China
| | - Xu Gao
- Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xin Li
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ling Lin
- Department of Infectious Diseases, Yantai City Hospital for Infectious Disease, Yantai, China
| | - Yuanni Liu
- Department of Infectious Diseases, Yantai City Hospital for Infectious Disease, Yantai, China
| | - Chuan Song
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Infectious Diseases, Beijing, China
- National Center for Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Zhihai Chen
- Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wei Zhang
- Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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Ai L, Wang W, Teng Z. Advancements in the Worldwide Detection of Severe Fever with Thrombocytopenia Syndrome Virus Infection from 2009 to 2023. China CDC Wkly 2023; 5:687-693. [PMID: 37593140 PMCID: PMC10427339 DOI: 10.46234/ccdcw2023.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a growing concern as an emerging tick-borne infectious disease originating from the SFTS virus (SFTSV), a recent addition to the Phlebovirus genus under the family of bunyaviruses. SFTS is typically identified by symptoms such as fever, thrombocytopenia, leukopenia, and gastrointestinal problems, accompanied by a potentially high case fatality rate. Thus, early and accurate diagnosis is essential for effective treatment and disease management. This review delves into the existing methodologies for SFTS detection, including pathogenic, molecular, and immunological technologies.
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Affiliation(s)
- Lin Ai
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Wei Wang
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
| | - Zheng Teng
- Institute of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
- Institute of Microbiology Laboratory, Shanghai Institute of Preventive Medicine, Shanghai, China
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Liu T, Liu J, Wu J, Qin L, Shi Y, Qi Y. Clinical Diagnostic Value of Serum 25-Hydroxyvitamin D in Severe Fever with Thrombocytopenia Syndrome. Infect Drug Resist 2023; 16:1715-1724. [PMID: 36999126 PMCID: PMC10046179 DOI: 10.2147/idr.s403482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/06/2023] [Indexed: 04/01/2023] Open
Abstract
Purpose Severe Fever with Thrombocytopenia Syndrome (SFTS) is an infectious disease with rapid onset and high case fatality rate. The study was to explore the clinical value by examining the serum level of 25-hydroxyvitamin D (25 (OH) D) in SFTS patients. Methods One hundred and five patients and 156 healthy controls were included. Univariate and multivariate regression analyses were performed to identify independent risk factors for disease progression. Subject operating characteristics (ROC) curves were drawn, and the corresponding area under the curve (AUC) was calculated to assess the sensitivity and specificity of the diagnostic disease. Results The 25 (OH) D level of disease group was lower than that of healthy control group (22.12 (18.43, 25.86) ng/mL vs 27.36 (23.20, 32.71) ng/mL; P<0.05). The 25 (OH) D level of severe disease group was lower than that of mild disease group (20.55(16.30, 24.44) ng/mL vs 24.94(20.89, 31.91) ng/mL; P<0.05). And there was no significant difference of 25 (OH) D level between the survival group and death group in severe disease group. Multivariate Logistic regression analysis showed that the 25 (OH) D level under 19.665 ng/mL was an independent risk factor for the development of SFTS (OR = 0.901, P=0.040). Furthermore, age more than 68.5 years old and lactate dehydrogenase (LDH) more than 1023.5U/L were independent risk factors for death in severe patients with SFTS. Conclusion Patients with SFTS have reduced 25 (OH) D level, and 25 (OH) D is a risk factor for disease severity in patients with SFTS. Vitamin D supplementation may be an effective measure to reduce the risk of infection and improve the prognosis.
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Affiliation(s)
- Ting Liu
- Department of Laboratory Medicine, Infection Hospital Area of the First Affiliated Hospital of University of Science and Technology of China (Hefei Infectious Disease Hospital), Hefei, Anhui Province, 230022, People’s Republic of China
| | - Jiaxing Liu
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, 210008, People’s Republic of China
| | - Jing Wu
- Department of Laboratory Medicine, Infection Hospital Area of the First Affiliated Hospital of University of Science and Technology of China (Hefei Infectious Disease Hospital), Hefei, Anhui Province, 230022, People’s Republic of China
| | - Linghan Qin
- Department of Laboratory Medicine, Infection Hospital Area of the First Affiliated Hospital of University of Science and Technology of China (Hefei Infectious Disease Hospital), Hefei, Anhui Province, 230022, People’s Republic of China
| | - Yuru Shi
- Department of Laboratory Medicine, Infection Hospital Area of the First Affiliated Hospital of University of Science and Technology of China (Hefei Infectious Disease Hospital), Hefei, Anhui Province, 230022, People’s Republic of China
| | - Yingjie Qi
- Department of Laboratory Medicine, Infection Hospital Area of the First Affiliated Hospital of University of Science and Technology of China (Hefei Infectious Disease Hospital), Hefei, Anhui Province, 230022, People’s Republic of China
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Tian W, Ren X, Gao X, Zhang Y, Chen Z, Zhang W. Accuracy of reverse-transcription polymerase chain reaction and loop-mediated isothermal amplification in diagnosing severe fever with thrombocytopenia syndrome: A systematic review and meta-analysis. J Med Virol 2022; 94:5922-5932. [PMID: 35968756 PMCID: PMC9804528 DOI: 10.1002/jmv.28068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/27/2022] [Accepted: 08/10/2022] [Indexed: 01/06/2023]
Abstract
Nucleic acid molecular diagnostic technology plays an important role in the detection of severe fever with thrombocytopenia syndrome (SFTS). However, no relevant reports have been published on the accuracy of reverse-transcription polymerase chain reaction (RT-PCR) and reverse-transcription loop-mediated isothermal amplification (RT-LAMP) in the diagnosis of SFTS. Thus, we conducted a meta-analysis and systematic review to evaluate the accuracy of the two methods. On June 19, 2022, we comprehensively searched the PubMed, Embase, Cochrane Library, Web of Science, Scoups, Ovid, Proquest, China National Knowledge Infrastructure Database, Wan Fang Data, Traditional Chinese Medicine Database (Sinomed), VIP Database, and Reading Showing Database for articles on nucleic acid diagnostic techniques, such as RT-PCR and RT-LAMP, used to diagnose SFTS. Statistical analysis was performed using STATA 14.0 and Meta-Disc 1.4. Sixteen articles involving 2942 clinical blood samples were included in the analysis. RT-PCR and RT-LAMP were used as index tests, whereas RT-PCR or other detection methods were used as reference standards. The pooled values for the sensitivity, specificity, positive and negative likelihood ratios of the RT-PCR test were 0.97 (95% confidence interval [CI]: 0.92-0.99), 1.00 (95% CI: 0.98-1.00), 483.87 (95% CI: 58.04-4033.76), and 0.03 (95% CI:0.01-0.08), respectively. Those for the RT-LAMP test were 0.95 (95% CI: 0.91-0.97), 0.99 (95% CI: 0.93-1.00), 111.18 (95% CI: 13.96-885.27), and 0.05 (95% CI: 0.03-0.09), respectively. Both RT-PCR and RT-LAMP have high diagnostic value in SFTS and can be applied in different scenarios for laboratory confirmation or on-site screening.
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Affiliation(s)
- Wen Tian
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Xingxiang Ren
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Xu Gao
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Yuanyuan Zhang
- Beijing Key Laboratory of Emerging Infectious Disease, Beijing Ditan HospitalCaptital Medical UniversityBeijingChina
| | - Zhihai Chen
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
| | - Wei Zhang
- Center of Infectious Diseases, Beijing Ditan HospitalCapital Medical UniversityBeijingChina
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Lee SY, Lee H, Yun SH, Park EC, Seo G, Kim HY, Jun S, Kim NH, Tark D, Lee JY, Lee CS, Kim SI. Proteomics-based diagnostic peptide discovery for severe fever with thrombocytopenia syndrome virus in patients. Clin Proteomics 2022; 19:28. [PMID: 35842602 PMCID: PMC9287713 DOI: 10.1186/s12014-022-09366-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 07/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Severe fever with thrombocytopenia syndrome (SFTS) virus is an emerging infectious virus which causes severe hemorrhage, thrombocytopenia, and leukopenia, with a high fatality rate. Since there is no approved therapeutics or vaccines for SFTS, early diagnosis is essential to manage this infectious disease. METHODS Here, we tried to detect SFTS virus in serum samples from SFTS patients by proteomic analysis. Firstly, in order to obtain the reference MS/MS spectral data of SFTS virus, medium from infected Vero cell culture was used for shotgun proteomic analysis. Then, tryptic peptides in sera from SFTS patients were confirmed by comparative analysis with the reference MS/MS spectral data of SFTS virus. RESULTS Proteomic analysis of culture medium successfully discovered tryptic peptides from all the five antigen proteins of SFTS virus. The comparative spectral analysis of sera of SFTS patients revealed that the N-terminal tryptic peptide of the nucleocapsid (N) protein is the major epitope of SFTS virus detected in the patient samples. The prevalence of the peptides was strongly correlated with the viral load in the clinical samples. CONCLUSIONS Proteomic analysis of SFTS patient samples revealed that nucleocapsid (N) protein is the major antigen proteins in sera of SFTS patients and N-terminal tryptic peptide of the N protein might be a useful proteomic target for direct detection of SFTS virus. These findings suggest that proteomic analysis could be an alternative tool for detection of pathogens in clinical samples and diagnosis of infectious diseases.
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Affiliation(s)
- Sang-Yeop Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Hayoung Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Sung Ho Yun
- Center for Research Equipment, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Edmond Changkyun Park
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Giwan Seo
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Hye-Yeon Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Sangmi Jun
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Center for Research Equipment, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Nam Hoon Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Dongseob Tark
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Jeonbuk, 54531, Republic of Korea
| | - Ju Yeon Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, 54986, Republic of Korea. .,Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea.
| | - Seung Il Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea. .,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea. .,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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A molecular beacon biosensor for viral RNA detection based on HyCaSD strategy. Anal Chim Acta 2022; 1221:340134. [DOI: 10.1016/j.aca.2022.340134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 11/24/2022]
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Clinical Update of Severe Fever with Thrombocytopenia Syndrome. Viruses 2021; 13:v13071213. [PMID: 34201811 PMCID: PMC8310018 DOI: 10.3390/v13071213] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 12/17/2022] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an acute febrile illness characterized by fever, leukopenia, thrombocytopenia, and gastrointestinal symptoms such as diarrhea, nausea, and vomiting resulting from infection with the SFTS virus (SFTSV). The SFTSV is transmitted to humans by tick bites, primarily from Haemaphysalis longicornis, Amblyomma testudinarium, Ixodes nipponensis, and Rhipicephalus microplus. Human-to-human transmission has also been reported. Since the first report of an SFTS patient in China, the number of patients has also been increasing. The mortality rate of patients with SFTS remains high because the disease can quickly lead to death through multiple organ failure. In particular, an average fatality rate of approximately 20% has been reported for SFTS patients, and no treatment strategy has been established. Therefore, effective antiviral agents and vaccines are required. Here, we aim to review the epidemiology, clinical manifestations, laboratory diagnosis, and various specific treatments (i.e., antiviral agents, steroids, intravenous immunoglobulin, and plasma exchange) that have been tested to help to cope with the disease.
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Sano S, Fukushi S, Yamada S, Harada S, Kinoshita H, Sugimoto S, Yoshikawa T, Kurosu T, Takamatsu Y, Shimojima M, Toda S, Hamada Y, Fujisawa N, Sugimoto T, Saijo M. Development of an RT-LAMP Assay for the Rapid Detection of SFTS Virus. Viruses 2021; 13:v13040693. [PMID: 33923720 PMCID: PMC8073756 DOI: 10.3390/v13040693] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
Detection of severe fever with thrombocytopenia syndrome (SFTS) virus (SFTSV) during the early phase of the disease is important for appropriate treatment, infection control, and prevention of further transmission. The reverse transcription loop-mediated isothermal amplification (RT-LAMP) is a nucleic acid amplification method that amplifies the target sequence under isothermal conditions. Here, we developed an RT-LAMP with a novel primer/probe set targeting a conserved region of the SFTSV L segment after extraction of viral RNA (standard RT-LAMP). Both the Chinese and Japanese SFTSV strains, including various genotypes, were detected by the standard RT-LAMP. We also performed RT-LAMP using the same primer/probe set but without the viral RNA extraction step (called simplified RT-LAMP) and evaluated the diagnostic efficacy. The sensitivity and specificity of the simplified RT-LAMP were 84.9% (45/53) and 89.5% (2/19), respectively. The simplified RT-LAMP can detect SFTSV in human sera containing >103.5 copies/mL viral RNA. The two RT-LAMP positive but quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR) negative samples were positive in the conventional RT-PCR, suggesting that there was no false positive reaction in the RT-LAMP. Both the standard and simplified RT-LAMP are useful for detecting the SFTSV genome in patients during the early phase of the disease.
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Affiliation(s)
- Shiori Sano
- Eiken Chemical Co., Ltd., 4-19-9 Taito, Taito-ku, Tokyo 110-8408, Japan;
| | - Shuetsu Fukushi
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
- Correspondence: ; Tel.: +81-3-5285-1111; Fax: +81-3-5285-1180
| | - Souichi Yamada
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Shizuko Harada
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Hitomi Kinoshita
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Satoko Sugimoto
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Tomoki Yoshikawa
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Takeshi Kurosu
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Yuki Takamatsu
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Masayuki Shimojima
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
| | - Shoichi Toda
- Yamaguchi Prefectural Institute of Public Health and Environment, 2-5-67 Aoi Yamaguchi, Yamaguchi 753-0821, Japan;
| | - Yuka Hamada
- Kagoshima Prefectural Institute for Environmental Research and Public Health, 11-40, Kinko-cho, Kagoshima City, Kagoshima 892-0836, Japan;
| | - Naoki Fujisawa
- Shimane Prefectural Institute of Public Health and Environmental Science, 582-1, Nishihamasada-cho, Matsue, Shimane 690-0122, Japan;
| | - Takayuki Sugimoto
- Miyazaki Prefectural Institute for Public Health and Environment, 2-3-2, Gakuenkibanadainishi, Miyazaki City, Miyazaki 889-2155, Japan;
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan; (S.Y.); (S.H.); (H.K.); (S.S.); (T.Y.); (T.K.); (Y.T.); shimoji-@nih.go.jp (M.S.); (M.S.)
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Yoo IY, Kim JY, Yoon YK, Huh HJ, Lee NY. Comparison Between the SFTS-QS Kit and the PowerChek SFTSV Real-time PCR Kit for the Detection of Severe Fever With Thrombocytopenia Syndrome Virus. Ann Lab Med 2020; 40:317-320. [PMID: 32067431 PMCID: PMC7054697 DOI: 10.3343/alm.2020.40.4.317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/17/2019] [Accepted: 01/15/2020] [Indexed: 12/20/2022] Open
Abstract
The recent increase in severe fever with thrombocytopenia syndrome (SFTS) cases has led to the development of the SFTS-QS kit (MiCoBioMed, Seongnam, Korea) for detecting the SFTS virus (SFTSV, now renamed Huaiyangshan banyangvirus). SFTS-QS is a qualitative real-time reverse transcription PCR assay based on lab-on-a-chip technology. We evaluated the performance of the SFTS-QS kit and compared it with that of the PowerChek SFTSV Real-time PCR kit (PowerChek; Kogene Biotech, Seoul, Korea). A total of 117 serum samples were simultaneously assayed using the SFTS-QS and PowerChek kits. Sanger sequencing targeting the S and M segments of SFTSV was performed as the reference method. The total turnaround time of the two kits was compared. The SFTS-QS results agreed with those of PowerChek with a kappa value of 0.92. The diagnostic sensitivity and specificity of the SFTS-QS kit were both 100% (14/14 and 103/103, respectively), whereas those of the PowerChek kit were 100% (14/14) and 98.1% (101/103), respectively. The results of SFTS-QS and PowerChek were comparable; however, the SFTS-QS kit required a shorter total turnaround time. The SFTS-QS kit produced accurate and fast results and thus could serve as a useful tool for detecting SFTSV.
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Affiliation(s)
- In Young Yoo
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Youn Kim
- Center for Clinical Medicine, Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Korea
| | - Young Kyung Yoon
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.,Institute of Emerging Infectious Diseases, Korea University College of Medicine, Seoul, Korea
| | - Hee Jae Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Nam Yong Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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11
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Umeki K, Yasuda A, Umekita K, Megumi R, Nomura H, Kawaguchi T, Matsuda M, Takajo I, Shimojima M, Okayama A. Detection of anti-SFTSV nuclear protein antibody in the acute phase sera of patients using double-antigen ELISA and immunochromatography. J Virol Methods 2020; 285:113942. [PMID: 32781007 DOI: 10.1016/j.jviromet.2020.113942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 11/28/2022]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a life-threatening febrile illness that is caused by the SFTS virus (SFTSV). The diagnosis of SFTS is usually performed by detecting viral RNA. However, it has been reported that viral RNA is no longer detectable at 6-12 days after the onset of disease. In the current study, we have constructed a plasmid to express the recombinant nuclear protein (NP) based on the Japanese strain of SFTSV (J1). We developed a double-antigen enzyme-linked immunosorbent assay (ELISA) and immunochromatography (IC) assay using recombinant NP to detect antibody against SFTSV-NP. When we tested time-sequential samples from four patients with SFTS, antibody to SFTSV-NP were detectable not only during the recovery phase (days 10-622) but also during the acute phase (days 4-7) of the disease using both of a double-antigen ELISA and IC assay. SFTSV-RNA was detected until 8-11 days after onset, thus suggesting the coexistence of the virus and antibody during the acute phase of SFTS. These data suggest that assays for detecting antibody against SFTS-NP described in the current study may be applicable not only for the epidemiological studies but also for the diagnosis of SFTS.
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Affiliation(s)
- Kazumi Umeki
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan; Department of Medical Life Science, Faculty of Medical Bioscience, Kyushu University of Health and Welfare, Yoshino-cho 1714-1, Nobeoka, Miyazaki, 882-8508, Japan
| | - Asato Yasuda
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan; Miyazaki Prefectural Institute for Public Health and Environment, Nishi 2-3-2 Gakuenkibanadai, Miyazaki 889-2155, Japan
| | - Kunihiko Umekita
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Ryoya Megumi
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Hajime Nomura
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Takeshi Kawaguchi
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Motohiro Matsuda
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Ichiro Takajo
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Masayuki Shimojima
- Department of Virology I, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashimurayama, Tokyo 208-0011, Japan
| | - Akihiko Okayama
- Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan.
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12
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He Z, Wang B, Li Y, Du Y, Ma H, Li X, Guo W, Xu B, Huang X. Severe fever with thrombocytopenia syndrome: a systematic review and meta-analysis of epidemiology, clinical signs, routine laboratory diagnosis, risk factors, and outcomes. BMC Infect Dis 2020; 20:575. [PMID: 32758175 PMCID: PMC7409422 DOI: 10.1186/s12879-020-05303-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 07/27/2020] [Indexed: 12/29/2022] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease with the high case-fatality rate, and lack of vaccines. We aimed to systematically analysed the epidemiological characteristics, clinical signs, routine laboratory diagnosis, risk factors, and outcomes. Methods Documents on SFTS were collected by searching the Chinese National Knowledge Infrastructure, Wan Fang Data, PubMed, Embase, and Web of Science databases from 2011 to 2018. Meta-analysis was performed by using Review Manager and Stata software. Results Twenty-five articles involving 4143 cases were included. Diarrhea (odds ratio (OR) =1.60, 95% confidence interval (CI): 1.06 to 2.42, P = 0.02), and vomiting (OR = 1.56, 95% CI: 1.01 to 2.39, P = 0.04) on admission were associated with the fatal outcomes of SFTS. Compared to patients with mild symptoms, patients with severe symptoms had significantly elevated levels of lactic acid dehydrogenase (standard mean difference (SMD) =1.27, 95% CI: 0.59 to 1.94), alanine aminotransferase (SMD = 0.55, 95% CI: 0.24 to 0.85), aspirate aminotransferase (SMD = 1.01, 95% CI: 0.69 to 1.32), and creatine kinase (SMD = 1.04, 95% CI: 0.74 to 1.33) but had reduced platelet counts (SMD = -0.87, 95% CI: − 1.16 to − 0.58) and albumin levels (SMD = -1.00, 95% CI: − 1.32 to − 0.68). The risk factors for poor prognosis included age (mean difference (MD) =6.88, 95% CI: 5.41 to 8.35) and farming (OR = 2.01, 95% CI: 1.06 to 3.80). For the risk factors of contracting SFTS, the incidence of SFTS related to tick bites was 24% [95% CI: 0.18 to 0.31]. The pooled case-fatality rate of SFTS patients was 18% [95% CI: 0.16 to 0.21]. Conclusions China is the country with the highest incidence of SFTS. May to July was the peak of the epidemic, and farmers were a high-risk group. The risk factor for SFTS included age (poor prognosis) and tick bites (contracting SFTS). Patients with severe diarrhea and vomiting symptoms on admission should be noted. Clinicians could use routine laboratory parameters and clinical symptoms as references for clinically suspected cases, classification of SFTS, and timely treatment, especially in basic hospitals.
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Affiliation(s)
- Zhiquan He
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Bohao Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yi Li
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China.,Henan Key Laboratory of Pathogenic Microorganisms, Zhengzhou, China
| | - Yanhua Du
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China.,Henan Key Laboratory of Pathogenic Microorganisms, Zhengzhou, China
| | - Hongxia Ma
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China.,Henan Key Laboratory of Pathogenic Microorganisms, Zhengzhou, China
| | - Xingle Li
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China.,Henan Key Laboratory of Pathogenic Microorganisms, Zhengzhou, China
| | - Wanshen Guo
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China
| | - Bianli Xu
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China
| | - Xueyong Huang
- Henan Province Center for Disease Control and Prevention, Zhengzhou, China. .,Henan Key Laboratory of Pathogenic Microorganisms, Zhengzhou, China.
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13
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Mukama O, Wu J, Li Z, Liang Q, Yi Z, Lu X, Liu Y, Liu Y, Hussain M, Makafe GG, Liu J, Xu N, Zeng L. An ultrasensitive and specific point-of-care CRISPR/Cas12 based lateral flow biosensor for the rapid detection of nucleic acids. Biosens Bioelectron 2020; 159:112143. [DOI: 10.1016/j.bios.2020.112143] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 02/08/2023]
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14
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Mukama O, Nie C, Habimana JDD, Meng X, Ting Y, Songwe F, Al Farga A, Mugisha S, Rwibasira P, Zhang Y, Zeng L. Synergetic performance of isothermal amplification techniques and lateral flow approach for nucleic acid diagnostics. Anal Biochem 2020; 600:113762. [PMID: 32387190 DOI: 10.1016/j.ab.2020.113762] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/23/2020] [Accepted: 04/17/2020] [Indexed: 02/06/2023]
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15
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Lee JW, Won YJ, Kang LH, Lee SG, Park SW, Paik SY. Development of a real-time loop-mediated isothermal amplification method for the detection of severe fever with thrombocytopenia syndrome virus. J Microbiol 2020; 58:711-715. [PMID: 32424580 PMCID: PMC7232587 DOI: 10.1007/s12275-020-0109-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 02/06/2023]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is being reported annually in South Korea since its first detection there in 2010. The causal agent is a negative-strand RNA virus 80–100 nm in diameter. It causes fever, thrombocytopenia, leukocytopenia, gastrointestinal symptoms, and neural symptoms. The mortality rate of SFTS was 32.6% among 172 cases reported from 2012 to 2015 in South Korea. Thus, is necessary to develop an effective diagnostic method that selectively identifies the isolates circulating in South Korea. The real-time reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay is a simple, rapid, and sensitive approach for molecular diagnosis. Here, we designed novel primers for this assay and found that the technique had very high specificity, sensitivity, and efficiency. This real-time RT-LAMP approach using the novel primers developed herein can be applied for early diagnosis of SFTSV strains in South Korea to reduce the mortality rate of SFTS.
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Affiliation(s)
- Jae Woong Lee
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Yu-Jung Won
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Lae Hyung Kang
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Sung-Geun Lee
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Seung-Won Park
- Department of Biotechnology, Daegu Catholic University, Gyeongsan-si, 38430, Republic of Korea
| | - Soon-Young Paik
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
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16
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Zhao VXT, Wong TI, Zheng XT, Tan YN, Zhou X. Colorimetric biosensors for point-of-care virus detections. MATERIALS SCIENCE FOR ENERGY TECHNOLOGIES 2019; 3:237-249. [PMID: 33604529 PMCID: PMC7148662 DOI: 10.1016/j.mset.2019.10.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/13/2019] [Accepted: 10/14/2019] [Indexed: 05/05/2023]
Abstract
Colorimetric biosensors can be used to detect a particular analyte through color changes easily by naked eyes or simple portable optical detectors for quantitative measurement. Thus, it is highly attractive for point-of-care detections of harmful viruses to prevent potential pandemic outbreak, as antiviral medication must be administered in a timely fashion. This review paper summaries existing and emerging techniques that can be employed to detect viruses through colorimetric assay design with detailed discussion of their sensing principles, performances as well as pros and cons, with an aim to provide guideline on the selection of suitable colorimetric biosensors for detecting different species of viruses. Among the colorimetric methods for virus detections, loop-mediated isothermal amplification (LAMP) method is more favourable for its faster detection, high efficiency, cheaper cost, and more reliable with high reproducible assay results. Nanoparticle-based colorimetric biosensors, on the other hand, are most suitable to be fabricated into lateral flow or lab-on-a-chip devices, and can be coupled with LAMP or portable PCR systems for highly sensitive on-site detection of viruses, which is very critical for early diagnosis of virus infections and to prevent outbreak in a swift and controlled manner.
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Affiliation(s)
- Victoria Xin Ting Zhao
- College of Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Ten It Wong
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore
| | - Xin Ting Zheng
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore
- Faculty of Science, Agriculture & Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, United Kingdom
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore
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17
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Ge Y, Zhou Q, Zhao K, Chi Y, Liu B, Min X, Shi Z, Zou B, Cui L. Detection of influenza viruses by coupling multiplex reverse-transcription loop-mediated isothermal amplification with cascade invasive reaction using nanoparticles as a sensor. Int J Nanomedicine 2017; 12:2645-2656. [PMID: 28435249 PMCID: PMC5388202 DOI: 10.2147/ijn.s132670] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Influenza virus infections represent a worldwide public health and economic problem due to the significant morbidity and mortality caused by seasonal epidemics and pandemics. Sensitive and convenient methodologies for detection of influenza viruses are essential for further disease control. Loop-mediated isothermal amplification (LAMP) is the most commonly used method of nucleic acid isothermal amplification. However, with regard to multiplex LAMP, differentiating the ladder-like LAMP products derived from multiple targets is still challenging today. The requirement of specialized instruments has further hindered the on-site application of multiplex LAMP. We have developed an integrated assay coupling multiplex reverse transcription LAMP with cascade invasive reaction using nanoparticles (mRT-LAMP-CIRN) as a sensor for the detection of three subtypes of influenza viruses: A/H1N1pdm09, A/H3 and influenza B. The analytic sensitivities of the mRT-LAMP-CIRN assay were 101 copies of RNA for both A/H1N1pdm09 and A/H3, and 102 copies of RNA for influenza B. This assay demonstrated highly specific detection of target viruses and could differentiate them from other genetically or clinically related viruses. Clinical specimen analysis showed the mRT-LAMP-CIRN assay had an overall sensitivity and specificity of 98.3% and 100%, respectively. In summary, the mRT-LAMP-CIRN assay is highly sensitive and specific, and can be used as a cost-saving and instrument-free method for the detection of influenza viruses, especially for on-site use.
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Affiliation(s)
- Yiyue Ge
- Institute of Pathogenic Microbiology, Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health), Jiangsu Provincial Center for Disease Control and Prevention
| | - Qiang Zhou
- Department of Pharmacology, Jinling Hospital, Medical School of Nanjing University
| | - Kangchen Zhao
- Institute of Pathogenic Microbiology, Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health), Jiangsu Provincial Center for Disease Control and Prevention
| | - Ying Chi
- Institute of Pathogenic Microbiology, Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health), Jiangsu Provincial Center for Disease Control and Prevention
| | - Bin Liu
- Department of Biomedical Engineering, Nanjing Medical University
| | - Xiaoyan Min
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Zhiyang Shi
- Institute of Pathogenic Microbiology, Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health), Jiangsu Provincial Center for Disease Control and Prevention
| | - Bingjie Zou
- Department of Pharmacology, Jinling Hospital, Medical School of Nanjing University
| | - Lunbiao Cui
- Institute of Pathogenic Microbiology, Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health), Jiangsu Provincial Center for Disease Control and Prevention
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18
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Yu F, Du Y, Huang X, Ma H, Xu B, Adungo F, Hayasaka D, Buerano CC, Morita K. Application of recombinant severe fever with thrombocytopenia syndrome virus nucleocapsid protein for the detection of SFTSV-specific human IgG and IgM antibodies by indirect ELISA. Virol J 2015; 12:117. [PMID: 26239826 PMCID: PMC4524020 DOI: 10.1186/s12985-015-0350-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/27/2015] [Indexed: 11/15/2022] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease that was first reported in China in 2011. It is caused by SFTS virus (SFTSV) which is a member of the Phlebovirus genus in the Bunyaviridae family. SFTSV has been classified as a BSL3 pathogen. There is a need to develop safe and affordable serodiagnostic methods for proper clinical management of infected patients. Methods The full length nucleocapsid (N) gene of SFTSV Yamaguchi strain was amplified by RT-PCR and cloned to an expression vector pQE30. The recombinant (r) SFTSV-N protein was expressed by using Escherichia coli (E. coli) expression system and purified under native conditions. rSFTSV-N protein based indirect IgG and IgM enzyme linked immunosorbent assay (ELISA) systems were established to detect specific human IgG and IgM antibodies, respectively. One hundred fifteen serum samples from clinically suspected-SFTS patients were used to evaluate the newly established systems and the results were compared with the total antibody detecting sandwich ELISA system. Results The native form of recombinant (r) SFTSV-N protein was expressed and purified. Application of the rSFTSV-N protein based indirect IgG ELISA to the 115 serum samples showed results that perfectly matched those of the total antibody sandwich ELISA with a sensitivity and specificity of 100 %. The rSFTSV-N protein based indirect IgM ELISA missed 8 positive samples that were detected by the total antibody sandwich ELISA. The sensitivity and specificity of rSFTSV-N-IgM capture ELISA were 90.59 and 100 %, respectively. Conclusions The rSFTSV-N protein is highly immunoreactive and a good target for use as an assay antigen in laboratory diagnosis. Its preparation is simpler in comparison with that used for the total antibody sandwich system. Our rSFTSV-N protein-based IgG and IgM ELISA systems have the advantage of distinguishing two types of antibodies and require small volume of serum sample only. They are safe to use for diagnosis of SFTS virus infection and especially fit in large-scale epidemiological investigations.
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Affiliation(s)
- Fuxun Yu
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12- 4, Sakamoto, Nagasaki, 852-8523, Japan.
| | - Yanhua Du
- Henan Center for Disease Control and Prevention, Zhengzhou, China.
| | - Xueyong Huang
- Henan Center for Disease Control and Prevention, Zhengzhou, China.
| | - Hong Ma
- Henan Center for Disease Control and Prevention, Zhengzhou, China.
| | - Bianli Xu
- Henan Center for Disease Control and Prevention, Zhengzhou, China.
| | - Ferdinard Adungo
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12- 4, Sakamoto, Nagasaki, 852-8523, Japan.
| | - Daisuke Hayasaka
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12- 4, Sakamoto, Nagasaki, 852-8523, Japan.
| | - Corazon C Buerano
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12- 4, Sakamoto, Nagasaki, 852-8523, Japan.
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12- 4, Sakamoto, Nagasaki, 852-8523, Japan.
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19
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Severe fever with thrombocytopenia syndrome: a newly discovered emerging infectious disease. Clin Microbiol Infect 2015; 21:614-20. [PMID: 25769426 DOI: 10.1016/j.cmi.2015.03.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/01/2015] [Accepted: 03/01/2015] [Indexed: 10/23/2022]
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a newly discovered emerging infectious disease that has recently become epidemic in Asia. The causative agent of SFTS is a novel phlebovirus in the family Bunyaviridae, designated SFTS virus (SFTSV). SFTS clinically presents with high fever, thrombocytopenia, leukocytopenia, gastrointestinal disorders, and multi-organ dysfunction, with a high viral load and a high case-fatality rate. In human infection, SFTSV targets microphages, replicates in the spleen of infected mice, and causes thrombocytopenia and a cytokine storm. The tick disseminates virus to humans and animals, forming a special transmission model in nature. Person-to-person transmission though direct contact with patient blood has been frequently reported. Measurements of viral RNA and antibodies have been established for diagnosis, but vaccines and specific therapeutics are not available so far.
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20
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Severe fever with thrombocytopenia syndrome, an emerging tick-borne zoonosis. THE LANCET. INFECTIOUS DISEASES 2014; 14:763-772. [DOI: 10.1016/s1473-3099(14)70718-2] [Citation(s) in RCA: 310] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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