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Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology

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https://www.readbyqxmd.com/read/28618289/erratum-to-comparison-of-turnaround-time-and-total-cost-of-hiv-testing-before-and-after-implementation-of-the-2014-cdc-aphl-laboratory-testing-algorithm-for-diagnosis-of-hiv-infection-j-clin-virol-91-2017-69-72
#1
Derrick J Chen, Joseph D Yao
No abstract text is available yet for this article.
June 12, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28633097/results-of-the-first-international-hiv-1-coreceptor-proficiency-panel-test
#2
Eva Heger, Rolf Kaiser, Elena Knops, Maria Neumann-Fraune, Eugen Schuelter, Alejandro Pironti, Thomas Lengauer, Hauke Walter, Saleta Sierra
BACKGROUND: Quality Assurance (QA) programs are essential to evaluate performance in diagnostics laboratories. OBJECTIVES: We present the results from the first QA for HIV-1 genotypic tropism testing, organized and coordinated by the Institute of Virology at the University of Cologne. STUDY DESIGN: 12 cell culture-derived viral strains of different HIV-1 clades from the NIH AIDS Reagent Program were sent to the participants to be processed with their standard diagnostic methods Fasta files containing the V3 region sequence were centrally analyzed at the Institute of Virology, Cologne...
June 10, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28622640/clinical-course-and-core-variability-in-hbv-infected-patients-without-detectable-anti-hbc-antibodies
#3
Olympia E Anastasiou, Marek Widera, Jens Verheyen, Johannes Korth, Guido Gerken, Fabian A Helfritz, Ali Canbay, Heiner Wedemeyer, Sandra Ciesek
BACKGROUND: The presence of anti-HBc antibodies indicates direct encounter of the immune system with hepatitis B virus (HBV). OBJECTIVES: Aim of our study was to seek for anti-HBc negative but HBV replicating patients and analyze their clinical course and preconditions. STUDY DESIGN: From 1568 HBV-DNA positive patients, 29 patients (1.85%) tested negative for anti-HBc. The absence of anti-HBc could be confirmed in 19 patients using an alternative assay...
June 8, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28633098/high-prevalence-of-cytomegalovirus-infection-in-surgical-intestinal-specimens-from-infants-with-necrotizing-enterocolitis-and-spontaneous-intestinal-perforation-a-retrospective-observational-study
#4
Soley Omarsdottir, Margret Agnarsdottir, Charlotte Casper, Abiel Orrego, Mireille Vanpée, Afsar Rahbar, Cecilia Söderberg-Nauclér
BACKGROUND: Necrotizing enterocolitis (NEC) is a severe, often fatal gastrointestinal emergency that predominantly affects preterm infants, and there is evidence that neonatal cytomegalovirus (CMV) infection may in some cases contribute to its pathogenesis. OBJECTIVES: This study aimed to evaluate the prevalence of CMV in infants with NEC. STUDY DESIGN: Seventy intestinal specimens from 61 infants with NEC, spontaneous intestinal perforation (SIP), or related surgical complications were collected at Karolinska University Hospital and Uppsala University Hospital, Sweden...
June 3, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28605724/human-parechovirus-cluster-in-the-uk-8-may-2-august-2016-sequence-analysis
#5
LETTER
C W Holmes, S Rahman, D J Allen, S Bandi, J W Tang
No abstract text is available yet for this article.
June 3, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28600949/effect-of-genomic-drift-of-influenza-pcr-tests
#6
Kathleen A Stellrecht, Seela M Nattanmai, Jumshan Butt, Vincente P Maceira, Alvin A Espino, Allan J Castro, Allen Landes, Nicolas Dresser, Shafiq A Butt
BACKGROUND: Nucleic acid amplification assays have become the method of choice for influenza (Flu) testing due to superior accuracy and faster turnaround time. Although assays are designed to detect highly conserved genomic targets, mutations can influence test sensitivity. Most of the circulating viruses in the United States during the 2014-2015 season were associated with significant genetic drift; however, the effect on testing was unknown. OBJECTIVES AND STUDY DESIGN: We compared the performance of Prodesse ProFlu+/ProFAST+ (PFlu/PFAST), FilmArray Respiratory Panel (RP), cobas(®) Influenza A/B test (cIAB), and Xpert(®) Flu (Xpt) in a retrospective analysis of consecutive nasopharyngeal specimens received for a two-week period during the winter of 2015...
June 3, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28601677/impact-of-stem-cell-graft-on-early-viral-infections-and-immune-reconstitution-after-allogeneic-transplantation-in-adults
#7
Marina Illiaquer, Berthe-Marie Imbert-Marcille, Thierry Guillaume, Lucie Planche, Marie Rimbert, Céline Bressollette-Bodin, Amandine Le Bourgeois, Pierre Peterlin, Alice Garnier, Claire Le Houerou, Philippe Moreau, Mohamad Mohty, Patrice Chevallier
BACKGROUND: Viral infections are well-known complications after allogeneic stem cell transplant (allo-SCT). OBJECTIVES: We compared prospectively incidences of DNAemia and active infections (AI) for five opportunistic viruses (Human Herpesvirus 6 (HHV-6), Epstein-Barr virus (EBV), BK polyomavirus (BKPyV), Cytomegalovirus (CMV) and Adenovirus (ADV)) and kinetics of immune reconstitution (IR) in adults receiving either double umbilical cord blood (dUCB group) or unrelated peripheral blood stem cell (uPBSC group) allo-SCT after a reduced-intensity conditioning (RIC) regimen...
May 31, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28618288/an-enhanced-enterovirus-surveillance-system-allows-identification-and-characterization-of-rare-and-emerging-respiratory-enteroviruses-in-denmark-2015-16
#8
Céline Barnadas, Sofie E Midgley, Marianne N Skov, Lotte Jensen, Mille W Poulsen, Thea Kølsen Fischer
BACKGROUND: The potential for outbreaks due to Enteroviruses (EV) with respiratory tropism, such as EV-D68, and the detection of new and rare EV species C is a concern. These EVs are typically not detected in stool specimens and may therefore be missed by standard EV surveillance systems. Following the North American outbreak of EV-D68 in 2014, Denmark piloted an enhanced EV surveillance system that included the screening of respiratory samples. OBJECTIVES: We aim to report clinical manifestations and phylogenetic descriptions from the rare and emerging EVs identified thereby demonstrating the usefulness of this system...
May 29, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28564629/comparison-between-roche-and-xpert-in-hiv-1-rna-quantitation-a-high-concordance-between-the-two-techniques-except-for-a-crf02_ag-subtype-variant-with-high-viral-load-titters-detected-by-roche-but-undetected-by-xpert
#9
Boaz Avidor, Natalia Matus, Shirley Girshengorn, Svetlana Achsanov, Simona Gielman, Irene Zeldis, Inbal Schweitzer, Amos Adler, Dan Turner
BACKGROUND: HIV-1 viral load (VL) testing is important to predict viral progression and to monitor the response to antiretroviral therapy. New HIV-1 VL tests are continuously introduced to the market. Their performance is usually compared to Abbott and/or Roche HIV-1 VL assays, as reference. The Xpert HIV-1 VL test was recently introduced, but its performance compared to Roche has not been sufficiently studied. OBJECTIVES: To compare the Xpert assay with Roche and to assess its use in the HIV clinical laboratory...
May 19, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531551/corrigendum-to-genedia-multi-influenza-ag-rapid-test-for-detection-and-h1-h3-and-h5-subtyping-of-influenza-viruses-j-clin-virol-73-2015-42-46
#10
Jin Woo Jang, Sun-Young Ko, Mun Sub Byoun, Haan Woo Sung, Chae Seung Lim
No abstract text is available yet for this article.
May 19, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28550722/inflammasome-expression-and-cytomegalovirus-viremia-in-critically-ill-patients-with-sepsis
#11
Nina Singh, Makoto Inoue, Ryosuke Osawa, Marilyn M Wagener, Mari L Shinohara
BACKGROUND: CMV viremia is a contributor to poor outcomes in critically ill patients with sepsis. OBJECTIVES: To assess the expression levels of genes encoding inflammasome-related proteins in the development of CMV viremia in critically ill patients with sepsis. STUDY DESIGN: A cohort of CMV-seropositive critically ill patients with sepsis due to bloodstream infection underwent weekly testing for CMV viremia. Blood samples to evaluate mRNA levels of genes encoding CASP1, ASC, NLRP1, NLRP3, and NLRP12 were collected at the time of enrollment...
May 18, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28550721/clinical-performance-of-the-veris-hcv-assay-for-hepatitis-c-virus-rna-quantification
#12
Laure Izquierdo, Corinne Prégermain, Corinne Hottelet, Gwenaëlle Decombe, Anne-Marie Roque-Afonso
BACKGROUND: Diagnosis of hepatitis C virus (HCV) infection and treatment monitoring rely on detection/quantification of HCV RNA and real-time polymerase chain reaction (PCR) techniques are expected to equivalently quantify the different HCV genotypes. OBJECTIVE: The clinical performance of the VERIS HCV assay for HCV RNA quantification was compared to that of the Abbott RealTime HCV assay. STUDY DESIGN: Qualitative concordance and quantitative comparison were evaluated on a first panel of 286 clinical samples containing HCV genotypes 1-6...
May 18, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28549336/evaluation-of-a-new-random-access-hbv-dna-molecular-assay-the-veris-hbv-assay
#13
Slim Fourati, Dominique Challine, Jean-Dominique Poveda, Syria Laperche, Sandrine Rallier, Jean-Michel Pawlotsky, Stéphane Chevaliez
BACKGROUND: Detection and quantification of HBV DNA are essential to diagnose chronic HBV infection, monitor the virological response to treatment and the possible selection of resistant viruses in order to tailor therapy. The VERIS/MDx System HBV Assay is a random-access system that quantifies HBV DNA in clinical samples using unique single sample and reagent access during the workflow process without the need to reload other tests and delivers results within 1.2h following sampling...
May 17, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28535437/comparative-evaluation-of-three-fda-approved-hiv-ag-ab-combination-tests-using-a-genetically-diverse-hiv-panel-and-diagnostic-specimens
#14
Xiaoxing Qiu, Lori Sokoll, Paul Yip, Debra J Elliott, Renu Dua, Phaedre Mohr, Xiao Yan Wang, Megan Spencer, Priscilla Swanson, George J Dawson, John Hackett
BACKGROUND: HIV Ag/Ab combination assays are recommended by CDC for routine screening and several HIV Ag/Ab combination tests are now FDA-approved. Maintaining high specificity and consistent sensitivity across diverse HIV strains is critical for these assays to accurately detect HIV infection and expedite delivery of patient results. OBJECTIVES: To evaluate performance of three FDA-approved HIV tests: ARCHITECT HIV Combo (Abbott), ADVIA Centaur HIV Combo (Siemens) and BioPlex HIV Ag-Ab (Bio-Rad)...
May 13, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531553/hiv-1-viral-load-measurement-in-venous-blood-and-fingerprick-blood-using-abbott-realtime-hiv-1-dbs-assay
#15
Ning Tang, Vihanga Pahalawatta, Andrea Frank, Zowie Bagley, Raquel Viana, John Lampinen, Gregor Leckie, Shihai Huang, Klara Abravaya, Carole L Wallis
BACKGROUND: HIV RNA suppression is a key indicator for monitoring success of antiretroviral therapy. From a logistical perspective, viral load (VL) testing using Dried Blood Spots (DBS) is a promising alternative to plasma based VL testing in resource-limited settings. OBJECTIVES: To evaluate the analytical and clinical performance of the Abbott RealTime HIV-1 assay using a fully automated one-spot DBS sample protocol. STUDY DESIGN: Limit of detection (LOD), linearity, lower limit of quantitation (LLQ), upper limit of quantitation (ULQ), and precision were determined using serial dilutions of HIV-1 Virology Quality Assurance stock (VQA Rush University), or HIV-1-containing armored RNA, made in venous blood...
May 13, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531552/the-role-of-next-generation-sequencing-in-infection-prevention-in-human-parainfluenza-virus-3-infections-in-immunocompromised-patients
#16
Atul Kothari, Mary J Burgess, Juan Carlos Rico Crescencio, Joshua L Kennedy, Jesse L Denson, Kurt C Schwalm, Ashley N Stoner, John C Kincaid, Faith E Davies, Darrell L Dinwiddie
BACKGROUND: Respiratory viral infections are a significant problem in patients with hematologic malignancies. We report a cluster of HPIV 3 infections in our myeloma patients, and describe the utility of next generation sequencing (NGS) to identify transmission linkages which can assist in infection prevention. OBJECTIVES: To evaluate the utility of NGS to track respiratory viral infection outbreaks and delineate between community acquired and nosocomial infections in our cancer units...
May 12, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28599228/a-european-multicientre-study-on-the-comparison-of-hiv-1-viral-loads-between-veris-hiv-1-assay-and-roche-cobas%C3%A2-taqman%C3%A2-hiv-1-test-abbott-realtime-hiv-1-assay-and-siemens-versant-hiv-1-assay
#17
Patrick Braun, Rafael Delgado, Monica Drago, Diana Fanti, Hervé Fleury, Jörg Hofmann, Jacques Izopet, Sebastian Kühn, Alessandra Lombardi, Alessandro Mancon, Mª Angeles Marcos, Davide Mileto, Karine Sauné, Siobhan O'Shea, Alfredo Pérez-Rivilla, John Ramble, Pascale Trimoulet, Jordi Vila, Duncan Whittaker, Alain Artus, Daniel Rhodes
BACKGROUND: Viral load monitoring is essential for patients under treatment for HIV. Beckman Coulter has developed the VERIS HIV-1 Assay for use on the novel, automated DxN VERIS Molecular Diagnostics System.(¥) OBJECTIVES: Evaluation of the clinical performance of the new quantitative VERIS HIV-1 Assay at multiple EU laboratories. STUDY DESIGN: Method comparison with the VERIS HIV-1 Assay was performed with 415 specimens at 5 sites tested with COBAS(®) AmpliPrep/COBAS(®) TaqMan(®) HIV-1 Test, v2...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28577423/severe-hand-foot-and-mouth-disease-associated-with-coxsackievirus-a10-infections-in-xiamen-china-in-2015
#18
Mengyuan Chen, Shuizhen He, Qiang Yan, Xuerong Xu, Wenhui Wu, Shengxiang Ge, Shiyin Zhang, Min Chen, Ningshao Xia
BACKGROUND: Coxsackievirus A10 (CV-A10) is one of the etiological agents associated with hand, foot and mouth disease (HFMD) and usually causes mild cases. During 2009-2014, no severe cases caused by CV-A10 was reported in Xiamen, China, however, an increase in cases was seen in 2015. OBJECTIVES: We aimed to perform a retrospective molecular epidemiological analysis of HFMD associated with CV-A10 infections in Xiamen. STUDY DESIGN: CV-A10 VP1 (n=41) capsid and full-length or near full-length genomes (n=14) were sequenced...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28521212/surveillance-for-enterovirus-d68-in-colorado-children-reveals-continued-circulation
#19
Kevin Messacar, Christine C Robinson, Kristin Pretty, Ji Yuan, Samuel R Dominguez
BACKGROUND: The largest, most widespread outbreak of enterovirus D68 respiratory disease occurred from August to December of 2014 in the United States with 1153 confirmed infections in 49 states. The epidemiology of enterovirus D68 following the 2014 outbreak is unknown. OBJECTIVES: This study seeks to describe the epidemiology of enterovirus D68 circulation amongst Colorado children from 2014 to 2016. STUDY DESIGN: This is a prospective observational surveillance study of enterovirus D68 infection amongst children tested for respiratory pathogens from July-October 2014-2016 at Children's Hospital Colorado (CHCO), a quaternary care children's hospital in Aurora, CO...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28521211/hepatitis-c-virus-core-antigen-a-simplified-treatment-monitoring-tool-including-for-post-treatment-relapse
#20
François M J Lamoury, Angelica Soker, Danica Martinez, Behzad Hajarizadeh, Evan B Cunningham, Philip Cunningham, Philip Bruggmann, Graham R Foster, Olav Dalgard, Markus Backmund, Brian Conway, Geert Robaeys, Tracy Swan, Gavin Cloherty, Pip Marks, Jason Grebely, Gregory J Dore, Tanya L Applegate
BACKGROUND: Simple, affordable diagnostic tools are essential to facilitate global hepatitis C virus (HCV) elimination efforts. OBJECTIVES: This study evaluated the clinical performance of core antigen (HCVcAg) assay from plasma samples to monitor HCV treatment efficacy and HCV viral recurrence. STUDY DESIGN: Plasma samples from a study of response-guided pegylated-interferon/ribavirin therapy for people who inject drugs with chronic HCV genotype 2/3 infection were assessed for HCV RNA (AmpliPrep/COBAS Taqman assay, Roche) and HCVcAg (ARCHITECT HCV Ag, Abbott Diagnostics) during and after therapy...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
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