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Song J, Zhang C, Fu S, Xu X. Visualized lateral flow assay for logic determination of co-existing viral RNA fragments. Biosens Bioelectron 2024; 261:116519. [PMID: 38917515 DOI: 10.1016/j.bios.2024.116519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/16/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024]
Abstract
Different types of pathogenic viruses that have common transmission path can be co-infected, inducing distinct disease procession in comparison to that infection of one. Also, in the post COVID-19 time, more types of respiratory infectious virus are becoming prevalent and are concurrent. Those bring an urgent need for detection of co-existing viruses. Here, we propose a visualized lateral flow assay for logic determination of co-existing viral RNA fragments. In the presence of specific viral RNA inputs, DNAzyme is de-blocked according to defined logic, and catalyzes the hydrolysis of hairpin-structural substrate. One of cleaved substrates contains DNAzyme domain to realize dual signal amplification, which obtains copious of the other cleaved substrates. The cleaved substrates act as linking strands for bridging DNA-modified gold nanoparticles onto lateral flow strip to induce coloration on test line. "AND", "OR" and "INHIBIT" controlled lateral flow assays are respectively demonstrated for co-existing viral RNA detection, and the visual results can be obtained by the same kind of prepared strip, without need of re-fabricating strips according to logic systems. The work provides a flexible, convenient, visual and logic-processing strategy for simultaneous analysis of co-existing viruses.
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Affiliation(s)
- Juanjuan Song
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Chuhao Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Siting Fu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xiaowen Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
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2
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Ortiz DA, Loeffelholz MJ. Practical Challenges of Point-of-Care Testing. Clin Lab Med 2023; 43:155-165. [PMID: 37169439 DOI: 10.1016/j.cll.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The practical challenges of point-of-care testing (POCT) include analytical performance and quality compared with testing performed in a central laboratory and higher cost per test compared with laboratory-based tests. These challenges can be addressed with new test technology, consensus, and practice guidelines for the use of POCT, instituting a quality management system and data connectivity in the POCT setting, and studies that demonstrate evidence of clinical and economic value of POCT.
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Affiliation(s)
- Daniel A Ortiz
- Microbiology and Molecular Pathology, Department of Pathology, Oakland University William Beaumont School of Medicine, Beaumont Health, 3601 West 13 Mile Road, Royal Oak, MI 48073, USA
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The Latest Achievements in the Construction of Influenza Virus Detection Aptasensors. Viruses 2020; 12:v12121365. [PMID: 33265901 PMCID: PMC7760490 DOI: 10.3390/v12121365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/14/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
Aptamers are short fragments of nucleic acids, DNA or RNA that have the ability to bind selected proteins with high specificity and affinity. These properties allow them to be used as an element of biosensors for the detection of specific proteins, including viral ones, which makes it possible to design valuable diagnostic tools. The influenza virus causes a huge number of human and animal deaths worldwide every year, and contributes to remarkable economic losses. In addition, in 2020, a new threat appeared-the SARS-Cov-2 pandemic. Both disease entities, especially in the initial stage of infection, are almost identical in terms of signs and symptoms. Therefore, a diagnostic solution is needed that will allow distinguishing between both pathogens, with high sensitivity and specificity; it should be cheap, quick and possible to use in the field, for example, in a doctor's office. All the mentioned properties are met by aptasensors in which the detection elements are specific aptamers. We present here the latest developments in the construction of various types of aptasensors for the detection of influenza virus. Aptasensor operation is based on the measurement of changes in electric impedance, fluorescence or electric signal (impedimetric, fluorescence and electrochemical aptasensors, respectively); it allows both qualitative and quantitative determinations. The particularly high advancement for detecting of influenza virus concerns impedimetric aptasensors.
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Uyeki TM, Bernstein HH, Bradley JS, Englund JA, File TM, Fry AM, Gravenstein S, Hayden FG, Harper SA, Hirshon JM, Ison MG, Johnston BL, Knight SL, McGeer A, Riley LE, Wolfe CR, Alexander PE, Pavia AT. Clinical Practice Guidelines by the Infectious Diseases Society of America: 2018 Update on Diagnosis, Treatment, Chemoprophylaxis, and Institutional Outbreak Management of Seasonal Influenzaa. Clin Infect Dis 2019; 68:e1-e47. [PMID: 30566567 PMCID: PMC6653685 DOI: 10.1093/cid/ciy866] [Citation(s) in RCA: 332] [Impact Index Per Article: 66.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 10/05/2018] [Indexed: 12/19/2022] Open
Abstract
These clinical practice guidelines are an update of the guidelines published by the Infectious Diseases Society of America (IDSA) in 2009, prior to the 2009 H1N1 influenza pandemic. This document addresses new information regarding diagnostic testing, treatment and chemoprophylaxis with antiviral medications, and issues related to institutional outbreak management for seasonal influenza. It is intended for use by primary care clinicians, obstetricians, emergency medicine providers, hospitalists, laboratorians, and infectious disease specialists, as well as other clinicians managing patients with suspected or laboratory-confirmed influenza. The guidelines consider the care of children and adults, including special populations such as pregnant and postpartum women and immunocompromised patients.
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Affiliation(s)
- Timothy M Uyeki
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Henry H Bernstein
- Division of General Pediatrics, Cohen Children's Medical Center, New Hyde Park, New York
| | - John S Bradley
- Division of Infectious Diseases, Rady Children's Hospital
- University of California, San Diego
| | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle Children's Hospital
| | - Thomas M File
- Division of Infectious Diseases Summa Health, Northeast Ohio Medical University, Rootstown
| | - Alicia M Fry
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Stefan Gravenstein
- Providence Veterans Affairs Medical Center and Center for Gerontology and Healthcare Research, Brown University, Providence, Rhode Island
| | - Frederick G Hayden
- Division of Infectious Diseases and International Health, University of Virginia Health System, Charlottesville
| | - Scott A Harper
- Office of Public Health Preparedness and Response, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jon Mark Hirshon
- Department of Emergency Medicine, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore
| | - Michael G Ison
- Divisions of Infectious Diseases and Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - B Lynn Johnston
- Department of Medicine, Dalhousie University, Nova Scotia Health Authority, Halifax, Canada
| | - Shandra L Knight
- Library and Knowledge Services, National Jewish Health, Denver, Colorado
| | - Allison McGeer
- Division of Infection Prevention and Control, Sinai Health System, University of Toronto, Ontario, Canada
| | - Laura E Riley
- Department of Maternal-Fetal Medicine, Massachusetts General Hospital, Boston
| | - Cameron R Wolfe
- Division of Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Paul E Alexander
- McMaster University, Hamilton, Ontario, Canada
- Infectious Diseases Society of America, Arlington, Virginia
| | - Andrew T Pavia
- Division of Pediatric Infectious Diseases, University of Utah, Salt Lake City
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5
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Uyeki TM, Bernstein HH, Bradley JS, Englund JA, File TM, Fry AM, Gravenstein S, Hayden FG, Harper SA, Hirshon JM, Ison MG, Johnston BL, Knight SL, McGeer A, Riley LE, Wolfe CR, Alexander PE, Pavia AT. Clinical Practice Guidelines by the Infectious Diseases Society of America: 2018 Update on Diagnosis, Treatment, Chemoprophylaxis, and Institutional Outbreak Management of Seasonal Influenzaa. Clin Infect Dis 2019; 68. [PMID: 30566567 PMCID: PMC6653685 DOI: 10.1093/cid/ciy866 10.1093/cid/ciz044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
These clinical practice guidelines are an update of the guidelines published by the Infectious Diseases Society of America (IDSA) in 2009, prior to the 2009 H1N1 influenza pandemic. This document addresses new information regarding diagnostic testing, treatment and chemoprophylaxis with antiviral medications, and issues related to institutional outbreak management for seasonal influenza. It is intended for use by primary care clinicians, obstetricians, emergency medicine providers, hospitalists, laboratorians, and infectious disease specialists, as well as other clinicians managing patients with suspected or laboratory-confirmed influenza. The guidelines consider the care of children and adults, including special populations such as pregnant and postpartum women and immunocompromised patients.
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Affiliation(s)
- Timothy M Uyeki
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Henry H Bernstein
- Division of General Pediatrics, Cohen Children's Medical Center, New Hyde Park, New York
| | - John S Bradley
- Division of Infectious Diseases, Rady Children's Hospital
- University of California, San Diego
| | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle Children's Hospital
| | - Thomas M File
- Division of Infectious Diseases Summa Health, Northeast Ohio Medical University, Rootstown
| | - Alicia M Fry
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Stefan Gravenstein
- Providence Veterans Affairs Medical Center and Center for Gerontology and Healthcare Research, Brown University, Providence, Rhode Island
| | - Frederick G Hayden
- Division of Infectious Diseases and International Health, University of Virginia Health System, Charlottesville
| | - Scott A Harper
- Office of Public Health Preparedness and Response, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jon Mark Hirshon
- Department of Emergency Medicine, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore
| | - Michael G Ison
- Divisions of Infectious Diseases and Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - B Lynn Johnston
- Department of Medicine, Dalhousie University, Nova Scotia Health Authority, Halifax, Canada
| | - Shandra L Knight
- Library and Knowledge Services, National Jewish Health, Denver, Colorado
| | - Allison McGeer
- Division of Infection Prevention and Control, Sinai Health System, University of Toronto, Ontario, Canada
| | - Laura E Riley
- Department of Maternal-Fetal Medicine, Massachusetts General Hospital, Boston
| | - Cameron R Wolfe
- Division of Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Paul E Alexander
- McMaster University, Hamilton, Ontario, Canada
- Infectious Diseases Society of America, Arlington, Virginia
| | - Andrew T Pavia
- Division of Pediatric Infectious Diseases, University of Utah, Salt Lake City
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Kumar B, Asha K, Khanna M, Ronsard L, Meseko CA, Sanicas M. The emerging influenza virus threat: status and new prospects for its therapy and control. Arch Virol 2018; 163:831-844. [PMID: 29322273 PMCID: PMC7087104 DOI: 10.1007/s00705-018-3708-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 12/19/2017] [Indexed: 01/16/2023]
Abstract
Influenza A viruses (IAVs) are zoonotic pathogens that cause yearly outbreaks with high rates of morbidity and fatality. The virus continuously acquires point mutations while circulating in several hosts, ranging from aquatic birds to mammals, including humans. The wide range of hosts provides influenza A viruses greater chances of genetic re-assortment, leading to the emergence of zoonotic strains and occasional pandemics that have a severe impact on human life. Four major influenza pandemics have been reported to date, and health authorities worldwide have shown tremendous progress in efforts to control epidemics and pandemics. Here, we primarily discuss the pathogenesis of influenza virus type A, its epidemiology, pandemic potential, current status of antiviral drugs and vaccines, and ways to effectively manage the disease during a crisis.
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Affiliation(s)
- Binod Kumar
- Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA.
| | - Kumari Asha
- Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Madhu Khanna
- Department of Respiratory Virology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | | | - Clement Adebajo Meseko
- Virology Department, National Veterinary Research Institute, Vom, Plateau State, Nigeria
| | - Melvin Sanicas
- Sanofi Pasteur, Asia and JPAC Region, Singapore, Singapore
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Antoniol S, Fidouh N, Ghazali A, Ichou H, Bouzid D, Kenway P, Choquet C, Visseaux B, Casalino E. Diagnostic performances of the Xpert ® Flu PCR test and the OSOM ® immunochromatographic rapid test for influenza A and B virus among adult patients in the Emergency Department. J Clin Virol 2017; 99-100:5-9. [PMID: 29257982 DOI: 10.1016/j.jcv.2017.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/08/2017] [Accepted: 12/12/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND New rapid influenza diagnostic tests (RIDT) are available but their clinical utility in adults has not been validated. OBJECTIVES To evaluate the diagnostic performances of OSOM® Ultra Flu A&B a RIDT on viral strains of influenza A/B from the last epidemic season, and its feasibility by Emergency Department (ED) physicians and nurses. STUDY DESIGN Of the 1099 patients admitted to the ED with suspected influenza, all having a nasopharyngeal swab tested by the Xpert® Flu PCR and then stored at -20 °C; 500 were selected at random and their samples were tested using the RIDT. Two experts reviewed ED and hospital medical records and all virological data to define influenza cases. Intra- and inter-observer variability were calculated. RESULTS Of the 500 patients included 45% were ≥75 years, 122 (24.4%) presented with influenza based on clinical and virological criteria. PCR test performances (%) were Se 98.4 (95% CI 93.6-99.7), Spe 99.7 (98.3-100), PPV 99.2 (94.8-100) and NPV 99.5 (97.9-100); and RIDT performances were Se 95.1 (89.2-97.9), Spe 98.4 (96.4-99.4), PPV 95.1 (87.2-99.9) and NPV 98.4 (96.4-98). There was no difference in test performance between influenza A and B virus nor between the influenza A subtypes. Intra- and inter-observer variability of RIDT were 0.94 (0.89-0.99) and 0.96 (0.92-1). CONCLUSION Our results show that the Xpert® Flu PCR and the OSOM® Ultra Flu A&B Test perform very well in diagnosing strains of circulating virus in adults and elderly. Our results also confirm the feasibility of this RIDT at point-of-care by ED staff.
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Affiliation(s)
- Stephanie Antoniol
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, EA 7334, Recherche clinique coordonnée ville-hôpital, Méthodologies et Société (REMES), Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France
| | - Nadhira Fidouh
- IAME (Infection, Antimicrobials, Modelling, Evolution), Université Paris Diderot, Sorbonne Paris Cité, UMR 1137, INSERM, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Laboratoire de Virologie, Hôpital Bichat, AP-HP, Paris, France
| | - Aiham Ghazali
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, EA 7334, Recherche clinique coordonnée ville-hôpital, Méthodologies et Société (REMES), Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France
| | - Houria Ichou
- IAME (Infection, Antimicrobials, Modelling, Evolution), Université Paris Diderot, Sorbonne Paris Cité, UMR 1137, INSERM, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Laboratoire de Virologie, Hôpital Bichat, AP-HP, Paris, France
| | - Donia Bouzid
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, EA 7334, Recherche clinique coordonnée ville-hôpital, Méthodologies et Société (REMES), Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France
| | - Philippe Kenway
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France
| | - Christophe Choquet
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France
| | - Benoit Visseaux
- IAME (Infection, Antimicrobials, Modelling, Evolution), Université Paris Diderot, Sorbonne Paris Cité, UMR 1137, INSERM, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Laboratoire de Virologie, Hôpital Bichat, AP-HP, Paris, France
| | - Enrique Casalino
- Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Universitaire Paris Nord Val de Seine, Emergency Department, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, EA 7334, Recherche clinique coordonnée ville-hôpital, Méthodologies et Société (REMES), Paris, France; Study Group for Efficiency and Quality of Emergency Departments and Non-Scheduled Activities Departments, Paris, France.
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8
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Mese S, Akan H, Badur S, Uyanik A. Analytical performance of the BD veritor™ system for rapid detection of influenza virus A and B in a primary healthcare setting. BMC Infect Dis 2016; 16:481. [PMID: 27612949 PMCID: PMC5016879 DOI: 10.1186/s12879-016-1811-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 08/26/2016] [Indexed: 11/10/2022] Open
Abstract
Background Infections with influenza A virus cannot be clinically differentiated from infections caused by influenza B virus or other respiratory viruses. Additionally, although antiviral treatment is available for influenza A virus, it is not effective for the other viruses and must be initiated early in the course of disease for it to be effective. For these reasons, there is a need for a rapid, accurate diagnostic test for use in physicians’ offices at the time patients are seen. We report the first field performance of BD Veritor™ System for Rapid Detection of Flu A + B test compared to real time PCR. The performance of this test was compared to real time PCR performed in the Istanbul University Influenza Reference Laboratory. Method A single-blinded cross sectional study was conducted in nine different family medicine centers in Istanbul, Turkey between 01 November 2014 and 01 May 2015. For every patient, two specimens were collected, one for real time PCR and one for the Veritor test. Specimens for the Veritor test were immediately tested at the participating clinic according to the manufacturer’s instructions. The specimens for real time PCR were transferred to the reference laboratory. Results A total of 238 persons were included in the study: 72 (30 %) of the patients included in the study were below 19 years old and accepted as childhood group. Mean age of adults was 42.4 and children 10.2 years. A total of 122 patients out of 238 were positive for influenza. The clinical sensitivity and specificity of the Veritor test in all age groups was determined to be 80 and 94 %, respectively. Positive predictive value was 93 % and the negative one was 81 %. Conclusion Field performance of the rapid influenza test was high and found to be useful with respect to rational antiviral use, avoiding unnecessary antibiotic usage and the management of cases by the family physicians.
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Affiliation(s)
- Sevim Mese
- Department of Microbiology and Clinical Microbiology, Virology and Fundamental Immunology Unit, National Influenza Reference Laboratory, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | - Hulya Akan
- Department of Family Medicine, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - Selim Badur
- Department of Microbiology and Clinical Microbiology, Virology and Fundamental Immunology Unit, National Influenza Reference Laboratory, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Aysun Uyanik
- Department of Microbiology and Clinical Microbiology, Virology and Fundamental Immunology Unit, National Influenza Reference Laboratory, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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9
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Karash S, Wang R, Kelso L, Lu H, Huang TJ, Li Y. Rapid detection of avian influenza virus H5N1 in chicken tracheal samples using an impedance aptasensor with gold nanoparticles for signal amplification. J Virol Methods 2016; 236:147-156. [PMID: 27452670 DOI: 10.1016/j.jviromet.2016.07.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 06/03/2016] [Accepted: 07/19/2016] [Indexed: 01/10/2023]
Abstract
Highly pathogenic avian influenza virus H5N1 is a continuous threat to public health and poultry industry. The recurrence of the H5N1 led us to develop a robust, specific, and rapid detection method for the virus. In this study, an impedance aptasensor was developed for the virus detection using specific H5N1 aptamer and a gold interdigitated microelectrode. Streptavidin was immobilized on the microelectrode surface and biotin labeled H5N1 aptamer was bound to the immobilized streptavidin. The microelectrode was blocked with the polyethylene glycol and the bound aptamer captured the virus. The impedance change caused by the captured virus was measured using an impedance analyzer. To enhance impedance signal, a nanoparticle-based amplifier was designed and implemented by forming a network-like gold nanoparticles/H5N1-aptamer/thiocyanuric acid. The detection limit of the impedance aptasensor was 0.25 HAU for the pure virus and 1 HAU for the tracheal chicken swab samples spiked with the H5N1 virus. The detection time of aptasensor without employing the amplifier was less than an hour. The amplifier increased impedance by a 57-fold for the 1 HAU samples. Only negligible impedance change was observed for non-target viruses such as H5N2, H5N3, H7N2, H1N1, and H2N2. This aptasensor provides a foundation for the development of a portable aptasensor instrument.
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Affiliation(s)
- Sardar Karash
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ronghui Wang
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Lisa Kelso
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA
| | - Huaguang Lu
- Animal Diagnostic Laboratory, State University, State College, PA 16802, USA
| | - Tony Jun Huang
- Department of Engineering Science and Mechanics & Material Research Institute, Pennsylvania State University, State College, PA 16802, USA
| | - Yanbin Li
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA; Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA; Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.
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10
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Arbefeville SS, Fickle AR, Ferrieri P. Sensitivity of the Quidel Sofia Fluorescent Immunoassay Compared With 2 Nucleic Acid Assays and Viral Culture to Detect Pandemic Influenza A(H1N1)pdm09. Lab Med 2016. [PMID: 26199264 DOI: 10.1309/lmrxbn8p59itdhqz] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
To confirm a diagnosis of influenza at the point of care, healthcare professionals may rely on rapid influenza diagnostic tests (RIDTs). RIDTs have low to moderate sensitivity compared with viral culture or real-time reverse-transcription polymerase chain reaction (rRT-PCR). With the resurgence of the influenza A (Flu A; subtype H1N1) pandemic 2009 (pdm09) strain in the years 2013 and 2014, we evaluated the accuracy of the United State Food and Drug Administration (FDA)-approved Sofia Influenza A+B Fluorescent Immunoassay to detect epidemic Flu A(H1N1)pdm09 in specimens from the upper-respiratory tract. During a 3-month period, we collected 40 specimens that tested positive via PCR and/or culture for Flu A of the H1N1 pdm09 subtype. Of the 40 specimens, 27 tested positive (67.5%) via Sofia assay for Flu A. Of the 13 specimens with a negative result via Sofia testing, 4 had coinfection, as detected by the GenMark Diagnostics eSensor Respiratory Viral Panel. This sensitivity of the RIDT Sofia assay to detect Flu A(H1N1) pdm09 was comparable to previously reported sensitivities ranging from 10% to 75% for older RIDTs.
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Affiliation(s)
- Sophie S Arbefeville
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota University of Minnesota Medical Center, Fairview, Minneapolis, Minnesota
| | - Ann R Fickle
- University of Minnesota Medical Center, Fairview, Minneapolis, Minnesota
| | - Patricia Ferrieri
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota University of Minnesota Medical Center, Fairview, Minneapolis, Minnesota
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11
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Dunn JJ, Ginocchio CC. Can newly developed, rapid immunochromatographic antigen detection tests be reliably used for the laboratory diagnosis of influenza virus infections? J Clin Microbiol 2015; 53:1790-6. [PMID: 25274999 PMCID: PMC4432049 DOI: 10.1128/jcm.02739-14] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Five years ago, the Point-Counterpoint series was launched. The initial article asked about the role of rapid immunochromatographic antigen testing in the diagnosis of influenza A virus 2009 H1N1 infection (D. F. Welch and C. C. Ginocchio, J Clin Microbiol 48:22-25, 2010, http://dx.doi.org/10.1128/JCM.02268-09). Since that article, not only have major changes been made in immunochromatographic antigen detection (IAD) testing for the influenza viruses, but there has also been rapid development of commercially available nucleic acid amplification tests (NAATs) for influenza virus detection. Further, a novel variant of influenza A, H7N9, has emerged in Asia, and H5N1 is also reemergent. In that initial article, the editor of this series, Peter Gilligan, identified two issues that required further consideration. One was how well IAD tests worked in clinical settings, especially in times of antigen drift and shift. The other was the role of future iterations of influenza NAATs and whether this testing would be available in a community hospital setting. James Dunn, who is Director of Medical Microbiology and Virology at Texas Children's Hospital, has extensive experience using IAD tests for diagnosing influenza. He will discuss the application and value of these tests in influenza diagnosis. Christine Ginocchio, who recently retired as the Senior Medical Director, Division of Infectious Disease Diagnostics, North Shore-LIJ Health System, and now is Vice President for Global Microbiology Affairs at bioMérieux, Durham, NC, wrote the initial counterpoint in this series, where she advocated the use of NAATs for influenza diagnosis. She will update us on the commercially available NAAT systems and explain what their role should be in the diagnosis of influenza infection.
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Affiliation(s)
- James J Dunn
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Christine C Ginocchio
- bioMérieux, Durham, North Carolina, USA Department of Pathology and Laboratory Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, New York, USA
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Mimura S, Kamigaki T, Takahashi Y, Umenai T, Kudou M, Oshitani H. Role of Preschool and Primary School Children in Epidemics of Influenza A in a Local Community in Japan during Two Consecutive Seasons with A(H3N2) as a Predominant Subtype. PLoS One 2015; 10:e0125642. [PMID: 25942315 PMCID: PMC4420257 DOI: 10.1371/journal.pone.0125642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 03/21/2015] [Indexed: 12/04/2022] Open
Abstract
Enhanced influenza surveillance was implemented to analyze transmission dynamics particularly driving force of influenza transmission in a community during 2011/12 and 2012/13 seasons in Odate City, Japan. In these two consecutive seasons, influenza A(H3N2) was the predominant influenza A subtype. Suspected influenza cases were tested by commercial rapid test kits. Demographic and epidemiological information of influenza positive cases were recorded using a standardized questionnaire, which included age or age group, date of visit, date of fever onset, and the result of rapid test kit. Epidemiological parameters including epidemic midpoint (EM) and growth rate (GR) were analyzed. In 2012/13 season, numbers of influenza A positive cases were significantly lower among preschool (212 cases) and primary school (224 cases) children than in 2011/12 season (461 and 538 cases, respectively). Simultaneously, total influenza A cases were also reduced from 2,092 in 2011/12 season to 1,846 in 2012/13 season. The EMs in preschool and primary school children were earlier than EMs for adult and all age group in both 2011/12 and 2012/13 seasons. The GR in 2012/13 season was significantly lower than that in 2011/12 season (0.11 and 0.18, respectively, p = 0.003). Multiple linear regression analysis by school districts revealed that GRs in both seasons were significantly correlated with the incidence of school age children. Our findings suggest that preschool and primary school children played an important role as a driving force of epidemics in the community in both 2011/12 and 2012/13 seasons. The reduction of total influenza A cases in 2012/13 season can be explained by decreased susceptible population in these age groups due to immunity acquired by infections in 2011/12 season. Further investigations are needed to investigate the effect of pre-existing immunity on influenza transmission in the community.
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Affiliation(s)
- Satoshi Mimura
- Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Taro Kamigaki
- Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan
- * E-mail:
| | | | | | | | - Hitoshi Oshitani
- Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Direct Detection of Influenza A and B Viruses in Less Than 20 Minutes Using a Commercially Available Rapid PCR Assay. J Clin Microbiol 2015; 53:2353-4. [PMID: 25926484 DOI: 10.1128/jcm.00791-15] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 04/18/2015] [Indexed: 01/02/2023] Open
Abstract
We compared an FDA-cleared rapid (<20 min) PCR assay (Cobas Liat; Roche Diagnostics) to our routine influenza A and B real-time PCR assay (Simplexa Flu A/B & RSV Direct; Focus Diagnostics) using respiratory swabs (n = 197). The Cobas Liat influenza A and B assays demonstrated sensitivities of 99.2% (123/124) and 100% (23/23), respectively, while showing a specificity of 100% for each target.
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Petridis D, Zarogoulidis P, Kallianos A, Kioumis I, Trakada G, Spyratos D, Papaiwannou A, Porpodis K, Huang H, Rapti A, Hohenforst-Schmidt W, Zarogoulidis K. Clinical differences between H3N2 and H1N1 influenza 2012 and lower respiratory tract infection found using a statistical classification approach. Ther Clin Risk Manag 2014; 10:77-86. [PMID: 24532970 PMCID: PMC3923611 DOI: 10.2147/tcrm.s57429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Influenza A H1N1 and H3N2 are two influenza waves that have been identified in past years. Methods Data from 77 inpatients from three tertiary hospitals were included and statistical analysis was performed in three different clusters. Results Thirty-four patients (44.2%) had respiratory distress upon admission, 31.2% had a smoking history or were active smokers, 37.7% manifested disease symptoms, and 7.8% were obese (body mass index >41). The mean age of patients was 51.1 years. Cough was the most common symptom observed in 77.9% of the patients, accompanied by sputum production (51.9%) and fatigue (42.9%). Hemoptysis and vomiting were rarely recorded in the patients (9.1% and 16.9%, respectively). Oseltamivir administration varied between 0 and 10 days, giving a mean value of 2.2 days. In particular, 19 patients received no drug, 31 patients received drug for only for 1 day, 19 patients for 5 days, and 8 patients from 2 to 10 days. Conclusion Clusters of symptoms can be used to identify different types of influenza and disease severity. Patients with vaccination had pneumonia, whereas patients without vaccination had influenza A. Patients more than 54.5 years old had H3N2 and patients less than 54.5 years had H1N1. White blood cell count values increased from normal to elevated in H3N2 patients but still remained abnormal in lower tract infection and H1N1 patients.
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Affiliation(s)
- Dimitris Petridis
- Department of Food Technology, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, Greece
| | - Paul Zarogoulidis
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece ; Department of Interventional Pneumology, Ruhrlandklinik, West German Lung Center, University Hospital, University Duisburg-Essen, Essen, Germany
| | | | - Ioannis Kioumis
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgia Trakada
- Department of Clinical Therapeutics, Division of Pneumonology, Medical School, National University of Athens, Athens, Greece
| | - Dionysios Spyratos
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonis Papaiwannou
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Konstantinos Porpodis
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Haidong Huang
- Department of Respiratory Diseases, Changhai Hospital/First Affiliated Hospital of the Second Military Medical University, Shanghai, People's Republic of China
| | - Aggeliki Rapti
- 2nd Pulmonary Department, "Sotiria" Hospital for Chest Diseases, Athens, Greece
| | | | - Konstantinos Zarogoulidis
- Pulmonary Department, "G Papanikolaou" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Clinical and virologic factors associated with reduced sensitivity of rapid influenza diagnostic tests in hospitalized elderly patients and young children. J Clin Microbiol 2013; 52:497-501. [PMID: 24478479 DOI: 10.1128/jcm.02316-13] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Rapid influenza diagnostic tests (RIDTs) are commonly used by clinicians to guide patient management. Data on sensitivities among hospitalized patients are limited. Here, we evaluated the clinical and virologic factors affecting the sensitivities of 2 commercially available RIDTs (BinaxNOW Influenza A&B and QuickVue Influenza A+B) on nasopharyngeal aspirate (NPA) specimens collected from elderly patients and young children hospitalized for influenza. Influenza cases and age-matched negative controls were prospectively enrolled during the 2011-2012 influenza season in Hong Kong. NPA specimens were collected at presentation before antiviral treatment. Real-time reverse transcription-PCR (RT-PCR) results were used as references for the sensitivity analyses. One hundred patients (57 influenza cases and 43 controls) were studied. Both RIDTs had 100% specificities. The sensitivities of the BinaxNOW Influenza A&B and QuickVue Influenza A+B tests were 70% and 82%, respectively. For both tests, the sensitivities were lower in cases with presentation times beyond 2 days of illness onset than for those within this time (50 to 71% versus 85 to 91%, respectively). There were trends toward lower sensitivities for influenza B than for influenza A (66 to 81% versus 76 to 84%, respectively), among young children than among the elderly patients (63 to 78% versus 80 to 88%, respectively), and among cases with pneumonia than those without pneumonia (75% versus 82 to 94%, respectively). The sensitivities of the RIDTs decreased with reduced NPA viral RNA levels (5.6 to 15.0% reduction per 1-log decrease), which declined progressively after illness onset (Spearman's rho, -0.47 [P < 0.05] and -0.66 [P < 0.001] for influenza A and B, respectively). Collectively, late presentation, a low NPA viral load, and probably lower respiratory manifestation are factors associated with reduced sensitivities of RIDTs for diagnosing influenza in hospitalized patients. A negative RIDT result should be interpreted with caution.
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Analytical sensitivity of seven point-of-care influenza virus detection tests and two molecular tests for detection of avian origin H7N9 and swine origin H3N2 variant influenza A viruses. J Clin Microbiol 2013; 51:3160-1. [PMID: 23784125 DOI: 10.1128/jcm.01222-13] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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