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Song JY, Noh JY, Lee JS, Wie SH, Kim YK, Lee J, Jeong HW, Kim SW, Lee SH, Park KH, Choi WS, Cheong HJ, Kim WJ. Effectiveness of repeated influenza vaccination among the elderly population with high annual vaccine uptake rates during the three consecutive A/H3N2 epidemics. Vaccine 2019; 38:318-322. [PMID: 31690467 DOI: 10.1016/j.vaccine.2019.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Annually, about 80% of the Korean elderly aged ≥65 years receive influenza vaccination. Repeated annual vaccination has been suggested as an important factor of poor influenza vaccine effectiveness (VE), though reported conflicting results. METHODS During the consecutive A/H3N2-dominant influenza seasons between 2012 and 2015, we comparatively evaluated the VE (repeated vs. current season only) against laboratory-confirmed influenza, pneumonia and hospitalization in the elderly aged ≥65 years with influenza-like illness (ILI). Clinical and demographic data were collected prospectively, and vaccination status of prior and current seasons was verified using the immunization registry data of Korean Centers for Disease Control and Prevention. RESULTS During the first A/H3N2-dominant season in 2012-2013, influenza vaccine showed statistically significant effectiveness against influenza A infection only and when vaccinated in the current season only (VE 53%, 95% CI 15-77). In the latter two seasons (2013-2015 years), the adjusted VE for influenza A was indistinguishable between repeated vaccination and vaccination in the current season only. CONCLUSION During consecutive influenza A/H3N2 epidemics, poor influenza vaccine effectiveness may be more pronounced among the elderly population with a high annual vaccine uptake rate.
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Affiliation(s)
- Joon Young Song
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asian Pacific Influenza Institute (APII), Seoul, South Korea
| | - Ji Yun Noh
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asian Pacific Influenza Institute (APII), Seoul, South Korea
| | - Jin Soo Lee
- Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, South Korea
| | - Seong-Heon Wie
- Division of Infectious Diseases, Department of Internal Medicine, Catholic University Medical College, St. Vincent's Hospital, Suwon, South Korea
| | - Young Keun Kim
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University, Wonju College of Medicine, Wonju, South Korea
| | - Jacob Lee
- Division of Infectious Diseases, Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
| | - Hye Won Jeong
- Division of Infectious Diseases, Chungbuk National University College of Medicine, Cheongju, South Korea
| | - Shin Woo Kim
- Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Sun Hee Lee
- Division of Infectious Diseases, Department of Internal Medicine, Pusan National University School of Medicine, Pusan, South Korea
| | - Kyung-Hwa Park
- Division of Infectious Diseases, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - Won Suk Choi
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea
| | - Hee Jin Cheong
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asian Pacific Influenza Institute (APII), Seoul, South Korea
| | - Woo Joo Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea; Asian Pacific Influenza Institute (APII), Seoul, South Korea.
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Cantais A, Mory O, Plat A, Giraud A, Pozzetto B, Pillet S. Analytical performances of the BD Veritor™ System for the detection of respiratory syncytial virus and influenzaviruses A and B when used at bedside in the pediatric emergency department. J Virol Methods 2019; 270:66-69. [PMID: 31047969 DOI: 10.1016/j.jviromet.2019.04.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 11/18/2022]
Abstract
This study aims to evaluate the analytical performance of the BD Veritor™ rapid diagnostic assays (RDTs) for respiratory syncytial virus (RSV) and influenzaviruses when performed 24/7 at bedside by nurses in the pediatric emergency department (PED). The study was performed between 14/10/2015 and 19/03/2016 on nasopharyngeal aspirates (NPAs) collected from children consulting at the PED of the University Hospital of Saint-Etienne for bronchiolitis (RSV detection) or flu-like syndrome (influenzaviruses A/B detection). NPAs were tested 24/7 at the PED with the RDT and then sent to the Infectious Agents Department for routine analyses, first by immunofluorescence assay (IFA), then by nucleic acid amplification test (NAAT) considered as the gold standard in case of discrepancy between RDT and IFA results. For RSV detection, 205 NPAs was analyzed; the overall concordance between RDT and routine assays was of 97.6% (200/205). The sensitivity (Se), specificity (Sp), negative predictive value (NPV) and positive predictive value (PPV) were of 97.6% (160/164), 97.6% (40/41), 90.9% (40/44) and 99.4% (160/161), respectively. A total of 419 NPA was tested for influenzaviruses. For influenzavirus A, the overall concordance was of 98.8% (414/419); Se, Sp, NPV and PPV were of 100% (41/41), 98.7% (373/378), 100% (373/373) and 89.1% (41/46), respectively. For influenzavirus B, the overall concordance was of 97.9% (410/419); Se, Sp, NPV and PPV were of 96.6% (172/178), 98.8% (238/241), 97.5% (238/244) and 98.3% (172/175), respectively. Due to their excellent performances and their easy handle by non-laboratory personnel, these RDTs can be warmly recommended as point of care assays at the PED.
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Affiliation(s)
- Aymeric Cantais
- Pediatric Emergency Department, University Hospital of Saint-Etienne, France; Laboratory Group on Mucosal Immunity and Pathogens (GIMAP EA3064), Faculty of Medicine of Saint-Etienne, University of Lyon, France
| | - Olivier Mory
- Pediatric Emergency Department, University Hospital of Saint-Etienne, France
| | - Aurélie Plat
- Pediatric Emergency Department, University Hospital of Saint-Etienne, France
| | - Antoine Giraud
- Pediatric Emergency Department, University Hospital of Saint-Etienne, France
| | - Bruno Pozzetto
- Laboratory Group on Mucosal Immunity and Pathogens (GIMAP EA3064), Faculty of Medicine of Saint-Etienne, University of Lyon, France; Laboratory of Infectious Agents and Hygiene, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Sylvie Pillet
- Laboratory Group on Mucosal Immunity and Pathogens (GIMAP EA3064), Faculty of Medicine of Saint-Etienne, University of Lyon, France; Laboratory of Infectious Agents and Hygiene, University Hospital of Saint-Etienne, Saint-Etienne, France.
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Vandamme S, Van Cleempoel S, Michiels M, Goossens H, Jansens H, Matheeussen V. Comparison of the Coris Influ A + B K-SeT® and BD Veritor Flu A + B® for rapid detection of influenza viruses in respiratory samples from 3 consecutive flu seasons in Belgium. Diagn Microbiol Infect Dis 2019; 94:227-230. [PMID: 30827806 DOI: 10.1016/j.diagmicrobio.2019.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/07/2019] [Accepted: 01/07/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Sarah Vandamme
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.
| | - Shauni Van Cleempoel
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
| | - Mindy Michiels
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
| | - Herman Goossens
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
| | - Hilde Jansens
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
| | - Veerle Matheeussen
- Laboratory of Clinical Microbiology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium
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Impact of bedside diagnosis of influenza in the paediatric emergency ward. Clin Microbiol Infect 2018; 25:898-903. [PMID: 30502486 DOI: 10.1016/j.cmi.2018.11.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/12/2018] [Accepted: 11/18/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVES This prospective study performed in the paediatric emergency department of the University Hospital of Saint-Etienne aimed to measure the impact of the 24/7 bedside use of the Veritor™ System (Becton Dickinson) on the reduction of supplementary investigations, hospital stay and antimicrobial use. METHODS Influenza virus A and B antigens were detected with a rapid influenza digital immunoassay (DIA) on nasopharyngeal aspirates (NPAs) sampled from the children consulting at the paediatric emergency department between January and March 2016 for influenza-like illness. The same NPA was tested by immunofluorescence and/or molecular routine assays. Before performing the DIA, the clinician filled in a questionnaire listing the tests that he/she would have prescribed in the absence of the rapid testing. The prescription of complementary investigations, antimicrobial treatments and hospital stay were also compared to those of the 3 previous years. RESULTS A total of 514 children with flu-like symptoms were included. The use of the DIA at bedside decreased the prescription of blood puncture by 47.9% (21.2% to 6.6%), of chest X-rays by 69.0% (33.3% to 10.3%), of lumbar puncture by 77.8% (7.0% to 1.6%), of urine culture by 79.2% (23.3% to 4.9%), of antibiotic treatments by 70.1% (16.9% to 5.1%), and of hospital stay by 25.0% (27.2% to 20.4%), resulting in a reduction of medical costs estimated to more than €69 000 in a season. CONCLUSIONS In addition to delivering a rapid aetiological diagnosis, this strategy saves medical costs and favours an antimicrobial stewardship strategy. However, further prospective studies are needed to confirm our findings.
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Tang JW, Blount J, Bradley C, Donaghy B, Shardlow C, Bandi S, Baxter C, Hunter A, Range S, Lam TT. Impact of a poorly performing point-of-care test during the 2017-2018 influenza season. J Infect 2018; 78:249-259. [PMID: 30408493 PMCID: PMC7172292 DOI: 10.1016/j.jinf.2018.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 10/13/2018] [Indexed: 11/03/2022]
Affiliation(s)
- Julian W Tang
- Clinical Microbiology and Virology, University Hospitals of Leicester NHS Trust, Level 5 Sandringham Building, Leicester Royal Infirmary, Infirmary Square, Leicester LE1 5WW, UK; Infection, Immunity, Inflammation, University of Leicester, Leicester, UK.
| | - Janice Blount
- Infection Prevention and Control, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Carina Bradley
- Clinical Microbiology and Virology, University Hospitals of Leicester NHS Trust, Level 5 Sandringham Building, Leicester Royal Infirmary, Infirmary Square, Leicester LE1 5WW, UK
| | - Bernadette Donaghy
- Adult Cystic Fibrosis Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Carol Shardlow
- Haematology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Srini Bandi
- Children's Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Caroline Baxter
- Clinical Decisions Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Ann Hunter
- Haematology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Simon Range
- Adult Cystic Fibrosis Unit, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Tommy Ty Lam
- School of Public Health, University of Hong Kong, Hong Kong SAR, China
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Dziąbowska K, Czaczyk E, Nidzworski D. Detection Methods of Human and Animal Influenza Virus-Current Trends. BIOSENSORS-BASEL 2018; 8:bios8040094. [PMID: 30340339 PMCID: PMC6315519 DOI: 10.3390/bios8040094] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/03/2018] [Accepted: 10/12/2018] [Indexed: 12/11/2022]
Abstract
The basic affairs connected to the influenza virus were reviewed in the article, highlighting the newest trends in its diagnostic methods. Awareness of the threat of influenza arises from its ability to spread and cause a pandemic. The undiagnosed and untreated viral infection can have a fatal effect on humans. Thus, the early detection seems pivotal for an accurate treatment, when vaccines and other contemporary prevention methods are not faultless. Public health is being attacked with influenza containing new genes from a genetic assortment between animals and humankind. Unfortunately, the population does not have immunity for mutant genes and is attacked in every viral outbreak season. For these reasons, fast and accurate devices are in high demand. As currently used methods like Rapid Influenza Diagnostic Tests lack specificity, time and cost-savings, new methods are being developed. In the article, various novel detection methods, such as electrical and optical were compared. Different viral elements used as detection targets and analysis parameters, such as sensitivity and specificity, were presented and discussed.
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Affiliation(s)
- Karolina Dziąbowska
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland.
- SensDx SA, 14b Postepu St., 02-676 Warsaw, Poland.
| | - Elżbieta Czaczyk
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland.
- SensDx SA, 14b Postepu St., 02-676 Warsaw, Poland.
| | - Dawid Nidzworski
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland.
- SensDx SA, 14b Postepu St., 02-676 Warsaw, Poland.
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Abstract
Introduction: Successful treatment outcomes for viral respiratory tract infections presenting from primary health care to quaternary hospitals will only be achieved with rapid, sensitive and specific identification of pathogens to allow effective pathogen-specific antiviral therapy and infection control measures. Areas covered: This review aims to explore the different point-of-care tests currently available to diagnose viral respiratory tract infections, discuss the advantages and limitations of point-of-care testing, and provide insights into the future of point-of-care tests. The following databases were searched: Medline (January 1996 to 30 September 2017) and Embase (1988 to 30 September 2017), using the following keywords: ‘point of care’, ‘respiratory virus’, ‘influenza’, ‘RSV’, ‘diagnostics’, ‘nucleic acid test’ and ‘PCR’. Expert commentary: Viral respiratory tract infections cause significant morbidity and mortality worldwide, and point-of-care tests are facilitating the rapid identification of the pathogen responsible given the similarities in clinical presentation.
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Affiliation(s)
- Kerri Basile
- a Centre for Infectious Diseases and Microbiology Laboratory Services , Institute of Clinical Pathology and Medical Research, NSW Health Pathology , Westmead , Australia.,b Marie Bashir Institute for Emerging Infections and Biosecurity , University of Sydney, Westmead Hospital , Westmead , Australia
| | - Jen Kok
- a Centre for Infectious Diseases and Microbiology Laboratory Services , Institute of Clinical Pathology and Medical Research, NSW Health Pathology , Westmead , Australia.,b Marie Bashir Institute for Emerging Infections and Biosecurity , University of Sydney, Westmead Hospital , Westmead , Australia
| | - Dominic E Dwyer
- a Centre for Infectious Diseases and Microbiology Laboratory Services , Institute of Clinical Pathology and Medical Research, NSW Health Pathology , Westmead , Australia.,b Marie Bashir Institute for Emerging Infections and Biosecurity , University of Sydney, Westmead Hospital , Westmead , Australia
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Berry GJ, Oladipo O, Wittnebert D, Loeffelholz MJ, Petersen JR. Comparison of the Alere i and BD Veritor Assays for the Rapid Detection of Influenza A and B Viruses. J Appl Lab Med 2017; 1:735-739. [PMID: 33379826 DOI: 10.1373/jalm.2016.022350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/10/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND The use of point-of care testing (POCT) in patient management decisions is becoming increasingly common. Our goal was to evaluate the diagnostic performance of 2 commercially available rapid POCT devices for influenza viruses A and B: the Alere™ i Instrument (Alere, Scarborough) and the BD Veritor™ System (BD Diagnostics). METHODS Paired nasopharyngeal swabs were collected from patients (18-71 years) presenting with influenza-like symptoms at 3 outpatient clinics. A total of 65 samples were obtained. The Alere i and BD Veritor were performed according to the manufacturers' instructions. Discordant results were resolved using real-time reverse transcription PCR (RT-PCR). RESULTS In a head-to-head comparison involving symptomatic adult patients visiting outpatient clinics during the 2014-2015 and 2015-2016 influenza seasons, the Alere i and BD Veritor had 90.63% agreement in the detection of influenza A virus and a statistically significant observed κ coefficient of 0.754 (P <0.0001). Discordant results between the Alere i and BD Veritor were further investigated using RT-PCR, showing that the BD Veritor missed 5 positive influenza A virus results (false negatives) and detected 1 false positive, while the Alere i results agreed with all RT-PCR results. There were no discordant results between the Alere i and BD Veritor in the detection of influenza B virus. CONCLUSIONS Our data suggest that the Alere i has higher sensitivity and specificity than the BD Veritor in the detection of influenza A virus. Both assays showed equal performance in the detection of influenza B virus.
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Affiliation(s)
- Gregory J Berry
- Department of Pathology, University of Texas Medical Branch, Galveston, TX.,Current affiliation: Northwell Health, Department of Pathology and Laboratory Medicine, Lake Success, NY
| | - Olajumoke Oladipo
- Department of Pathology, University of Texas Medical Branch, Galveston, TX
| | | | | | - John R Petersen
- Department of Pathology, University of Texas Medical Branch, Galveston, TX
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