2011
Diagnostic tests for influenza infection
Landry ML. Diagnostic tests for influenza infection. Current Opinion In Pediatrics 2011, 23: 91-97. PMID: 21150446, DOI: 10.1097/mop.0b013e328341ebd9.Peer-Reviewed Original ResearchConceptsMolecular testingMultiplex molecular testRapid antigen testInfluenza infectionViral loadAntigen testPatient groupSeasonal influenzaImmunofluorescence testDiagnostic test performanceAntigenic changesNext pandemicRapid cultureDiagnostic testsMolecular testsMarked variabilityNegative resultsSame testDiagnostic methods
2009
Comparison of BD GeneOhm Cdiff Real-Time PCR Assay with a Two-Step Algorithm and a Toxin A/B Enzyme-Linked Immunosorbent Assay for Diagnosis of Toxigenic Clostridium difficile Infection
Kvach EJ, Ferguson D, Riska PF, Landry ML. Comparison of BD GeneOhm Cdiff Real-Time PCR Assay with a Two-Step Algorithm and a Toxin A/B Enzyme-Linked Immunosorbent Assay for Diagnosis of Toxigenic Clostridium difficile Infection. Journal Of Clinical Microbiology 2009, 48: 109-114. PMID: 19864479, PMCID: PMC2812270, DOI: 10.1128/jcm.01630-09.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, BacterialBacterial ProteinsBacterial ToxinsBacteriological TechniquesClinical Laboratory TechniquesClostridioides difficileEnterocolitis, PseudomembranousEnterotoxinsEnzyme-Linked Immunosorbent AssayGlutamate DehydrogenaseHumansNeutralization TestsPolymerase Chain ReactionReagent Kits, DiagnosticSensitivity and Specificity
2008
Real-time PCR compared to Binax NOW and cytospin-immunofluorescence for detection of influenza in hospitalized patients
Landry ML, Cohen S, Ferguson D. Real-time PCR compared to Binax NOW and cytospin-immunofluorescence for detection of influenza in hospitalized patients. Journal Of Clinical Virology 2008, 43: 148-151. PMID: 18639488, PMCID: PMC7173065, DOI: 10.1016/j.jcv.2008.06.006.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAntibodies, MonoclonalChildChild, PreschoolFluorescent Antibody Technique, DirectHospitalizationHumansImmunoassayInfantInfluenza A virusInfluenza B virusInfluenza, HumanMiddle AgedNasopharynxReagent Kits, DiagnosticReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionSensitivity and SpecificityTaq PolymeraseTime FactorsVirus CultivationYoung AdultConceptsHospitalized patientsTaqMan RT-PCRRT-PCRInfluenza ARapid flu testsDiagnosis of influenzaInfluenza-positive samplesDetection of influenzaReal-time RT-PCRInfluenza BInfluenza diagnosisPatient managementReal-time PCRMore accurate testsPatientsBinaxTrue positive samplesRapid testClinical samplesPositive samplesFurther studiesHospitalAccurate testInfluenzaDiagnosis
2005
Real-Time Nucleic Acid Sequence-Based Amplification Using Molecular Beacons for Detection of Enterovirus RNA in Clinical Specimens
Landry ML, Garner R, Ferguson D. Real-Time Nucleic Acid Sequence-Based Amplification Using Molecular Beacons for Detection of Enterovirus RNA in Clinical Specimens. Journal Of Clinical Microbiology 2005, 43: 3136-3139. PMID: 16000425, PMCID: PMC1169110, DOI: 10.1128/jcm.43.7.3136-3139.2005.Peer-Reviewed Original ResearchConceptsNucleic acid sequence-based amplificationTime Nucleic Acid Sequence-Based AmplificationEV-positive samplesReal-time nucleic acid sequence-based amplificationDetection of enterovirusesEnterovirus RNAStool samplesCerebrospinal fluidNASBA assayClinical specimensEnterovirusesMolecular beacon technologyAssays
2003
Comparison of the NucliSens Basic Kit (Nucleic Acid Sequence-Based Amplification) and the Argene Biosoft Enterovirus Consensus Reverse Transcription-PCR Assays for Rapid Detection of Enterovirus RNA in Clinical Specimens
Landry ML, Garner R, Ferguson D. Comparison of the NucliSens Basic Kit (Nucleic Acid Sequence-Based Amplification) and the Argene Biosoft Enterovirus Consensus Reverse Transcription-PCR Assays for Rapid Detection of Enterovirus RNA in Clinical Specimens. Journal Of Clinical Microbiology 2003, 41: 5006-5010. PMID: 14605131, PMCID: PMC262477, DOI: 10.1128/jcm.41.11.5006-5010.2003.Peer-Reviewed Original ResearchConceptsNucleic acid sequence-based amplificationNucliSens Basic KitRT-PCREnterovirus RNABasic KitEnterovirus-positive samplesReverse transcription-PCR assayTranscription-PCR assayNasopharyngeal samplesRT-PCR kitVirus isolationClinical specimensTranscription-PCRPositive samplesComparable sensitivityKitMolecular methodsEnterovirusesSuboptimal Detection of Influenza Virus in Adults by the Directigen Flu A+B Enzyme Immunoassay and Correlation of Results with the Number of Antigen-Positive Cells Detected by Cytospin Immunofluorescence
Landry ML, Ferguson D. Suboptimal Detection of Influenza Virus in Adults by the Directigen Flu A+B Enzyme Immunoassay and Correlation of Results with the Number of Antigen-Positive Cells Detected by Cytospin Immunofluorescence. Journal Of Clinical Microbiology 2003, 41: 3407-3409. PMID: 12843105, PMCID: PMC165325, DOI: 10.1128/jcm.41.7.3407-3409.2003.Peer-Reviewed Original ResearchConceptsVirus infectionEnzyme immunoassayDirectigen FluParainfluenza virus infectionPositive EIA resultsRespiratory syncytial virusAntigen-positive cellsNasopharyngeal swabsSyncytial virusEmergency departmentInfluenza diagnosisDirect immunofluorescenceInfluenza virusVirology laboratoryEIA resultsNight shiftsInfectionInfluenzaImmunofluorescenceFluAdultsVirusCorrelation of resultsImmunoassayCellsRapid Enterovirus RNA Detection in Clinical Specimens by Using Nucleic Acid Sequence-Based Amplification
Landry ML, Garner R, Ferguson D. Rapid Enterovirus RNA Detection in Clinical Specimens by Using Nucleic Acid Sequence-Based Amplification. Journal Of Clinical Microbiology 2003, 41: 346-350. PMID: 12517871, PMCID: PMC149595, DOI: 10.1128/jcm.41.1.346-350.2003.Peer-Reviewed Original ResearchConceptsNucleic acid sequence-based amplificationPrimary rhesus monkey kidneyRNA detectionNucliSens Basic KitRhesus monkey kidneyGreen monkey kidney cellsBuffalo green monkey kidney cellsMonkey kidney cellsVirus isolationClinical specimensEnterovirus detectionMonkey kidneyBasic KitMRC-5Kidney cellsCell culturesEV isolationRhabdomyosarcomaKidney
2001
Evaluation of Biosite Triage Clostridium difficile Panel for Rapid Detection of Clostridium difficile in Stool Samples
Landry M, Topal J, Ferguson D, Giudetti D, Tang Y. Evaluation of Biosite Triage Clostridium difficile Panel for Rapid Detection of Clostridium difficile in Stool Samples. Journal Of Clinical Microbiology 2001, 39: 1855-1858. PMID: 11326003, PMCID: PMC88038, DOI: 10.1128/jcm.39.5.1855-1858.2001.Peer-Reviewed Original ResearchConceptsNegative predictive valuePositive predictive valueCommon antigenStool samplesPredictive valueC. difficile toxin AHigh negative predictive valueAntigen-positive patientsDifficile-negative patientsAntigen positive resultDifficile toxin ADifficile carriersContact precautionsAntibiotic treatmentToxin ACytotoxin titersTriage PanelUnnecessary useClostridium difficilePatients
2000
A Multisite Trial Comparing Two Cytomegalovirus (CMV) pp65 Antigenemia Test Kits, Biotest CMV Brite and Bartels/Argene CMV Antigenemia
St. George K, Boyd M, Lipson S, Ferguson D, Cartmell G, Falk L, Rinaldo C, Landry M. A Multisite Trial Comparing Two Cytomegalovirus (CMV) pp65 Antigenemia Test Kits, Biotest CMV Brite and Bartels/Argene CMV Antigenemia. Journal Of Clinical Microbiology 2000, 38: 1430-1433. PMID: 10747120, PMCID: PMC86458, DOI: 10.1128/jcm.38.4.1430-1433.2000.Peer-Reviewed Original ResearchConceptsPp65 antigenemiaTransplant recipientsHuman immunodeficiency virus-positive patientsImmunodeficiency virus-positive patientsBone marrow transplant recipientsCMV pp65 antigenemiaOrgan transplant recipientsVirus-positive patientsMarrow transplant recipientsPositive cell countsPeripheral blood leukocytesNegative predictive valueCMV antigenemiaBlood leukocytesAntigenemiaBlood specimensPredictive valueCell countMultisite trialCytomegalovirusStatistical differenceTotalTest kitRecipientsKit2-Hour Cytomegalovirus pp65 Antigenemia Assay for Rapid Quantitation of Cytomegalovirus in Blood Samples
Landry M, Ferguson D. 2-Hour Cytomegalovirus pp65 Antigenemia Assay for Rapid Quantitation of Cytomegalovirus in Blood Samples. Journal Of Clinical Microbiology 2000, 38: 427-428. PMID: 10618133, PMCID: PMC88741, DOI: 10.1128/jcm.38.1.427-428.2000.Peer-Reviewed Original Research
1997
Use of a single swab in multi-microbe or flex trans transport medium for detection of Chlamydia trachomatis by Roche Amplicor PCR and culture in specimens from two different patient populations
Fong CK, Falcone J, Landry ML. Use of a single swab in multi-microbe or flex trans transport medium for detection of Chlamydia trachomatis by Roche Amplicor PCR and culture in specimens from two different patient populations. Journal Of Clinical Microbiology 1997, 35: 2427-2429. PMID: 9276433, PMCID: PMC229985, DOI: 10.1128/jcm.35.9.2427-2429.1997.Peer-Reviewed Original Research
1987
Impact of cell culture sensitivity and virus concentration on rapid detection of herpes simplex virus by cytopathic effects and immunoperoxidase staining
Zhao LS, Landry ML, Balkovic ES, Hsiung GD. Impact of cell culture sensitivity and virus concentration on rapid detection of herpes simplex virus by cytopathic effects and immunoperoxidase staining. Journal Of Clinical Microbiology 1987, 25: 1401-1405. PMID: 3040800, PMCID: PMC269234, DOI: 10.1128/jcm.25.8.1401-1405.1987.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, ViralCell LineCells, CulturedCytopathogenic Effect, ViralHumansImmunoenzyme TechniquesReagent Kits, DiagnosticSimplexvirusVero CellsViral Plaque AssayConceptsHerpes simplex virusSimplex virusCytopathic effectHerpes simplex virus (HSV) isolationMink lungVero cellsOverall isolation rateViral antigen detectionViral infectivity titerCell culturesApplication of immunoperoxidaseCommercial kitsMRC-5 cellsRapidity of detectionRabbit kidney cellsCulture sensitivityVirus isolationClinical specimensInfectious virusInfectivity titersHigh titersAntigen detectionIsolation rateImmunoperoxidaseRabbit kidney