2023
Nasal host response-based screening for undiagnosed respiratory viruses: a pathogen surveillance and detection study
Cheemarla N, Hanron A, Fauver J, Bishai J, Watkins T, Brito A, Zhao D, Alpert T, Vogels C, Ko A, Schulz W, Landry M, Grubaugh N, van Dijk D, Foxman E. Nasal host response-based screening for undiagnosed respiratory viruses: a pathogen surveillance and detection study. The Lancet Microbe 2023, 4: e38-e46. PMID: 36586415, PMCID: PMC9835789, DOI: 10.1016/s2666-5247(22)00296-8.Peer-Reviewed Original ResearchConceptsRespiratory virus panelPg/mLCXCL10 concentrationsSARS-CoV-2Bacterial pathobiontsRespiratory virusesSARS-CoV-2 negative samplesViral respiratory infectionsSARS-CoV-2 positive samplesClinical virology laboratoryHealth care systemVirus-positive samplesQuantitative RT-PCRInfluenza C virusSymptomatic patientsRespiratory infectionsSeasonal coronavirusesNasopharyngeal swabsVirus panelC virusCommon virusesCXCL10Host responseInterferon responseVirology laboratory
2020
Challenges in use of saliva for detection of SARS CoV-2 RNA in symptomatic outpatients
Landry ML, Criscuolo J, Peaper DR. Challenges in use of saliva for detection of SARS CoV-2 RNA in symptomatic outpatients. Journal Of Clinical Virology 2020, 130: 104567. PMID: 32750665, PMCID: PMC7392849, DOI: 10.1016/j.jcv.2020.104567.Peer-Reviewed Original ResearchMeSH KeywordsBetacoronavirusClinical Laboratory TechniquesCoronavirus InfectionsCOVID-19COVID-19 TestingCOVID-19 VaccinesHumansMolecular Diagnostic TechniquesNasopharynxOutpatientsPandemicsPneumonia, ViralProspective StudiesReal-Time Polymerase Chain ReactionRNA, ViralSalivaSARS-CoV-2Specimen HandlingConceptsNasopharyngeal swabsReal-time RT-PCRSymptomatic outpatientsRT-PCRSARS-CoV-2 positivitySaliva samplesSARS-CoV-2 testingMedian cycle threshold valuePure salivaSARS-CoV-2 RNA detectionSARS-CoV-2 RNACoV-2 testingUse of salivaCycle threshold valuesSymptomatic patientsOverall sensitivityRNA detectionSalivaCOVID-19OutpatientsHigh-volume testingPatientsSwabs
2017
Antiviral Response in the Nasopharynx Identifies Patients With Respiratory Virus Infection
Landry ML, Foxman EF. Antiviral Response in the Nasopharynx Identifies Patients With Respiratory Virus Infection. The Journal Of Infectious Diseases 2017, 217: 897-905. PMID: 29281100, PMCID: PMC5853594, DOI: 10.1093/infdis/jix648.Peer-Reviewed Original ResearchConceptsRespiratory virusesNasopharyngeal swabsViral infectionCXCL10 protein levelsPatient nasopharyngeal swabsRespiratory virus infectionsHuman nasal epithelial cellsManagement of patientsRespiratory virus detectionNasal epithelial cellsSingle host proteinVirus detectionSimple diagnostic testIdentifies patientsRespiratory symptomsRespiratory infectionsRespiratory illnessHigh burdenVirus infectionReceptor RIGCost-effective testAntiviral responseAccurate diagnosisDiagnostic testsInfection
2016
Sensitive Detection and Simultaneous Discrimination of Influenza A and B Viruses in Nasopharyngeal Swabs in a Single Assay Using Next-Generation Sequencing-Based Diagnostics
Zhao J, Liu J, Vemula SV, Lin C, Tan J, Ragupathy V, Wang X, Mbondji-wonje C, Ye Z, Landry ML, Hewlett I. Sensitive Detection and Simultaneous Discrimination of Influenza A and B Viruses in Nasopharyngeal Swabs in a Single Assay Using Next-Generation Sequencing-Based Diagnostics. PLOS ONE 2016, 11: e0163175. PMID: 27658193, PMCID: PMC5033603, DOI: 10.1371/journal.pone.0163175.Peer-Reviewed Original ResearchB virusInfluenza AInfluenza types/subtypesInfluenza virusPandemic influenza virusInfluenza B virusTypes/subtypesInfluenza viral genomeE627K mutationAntiviral treatmentNasopharyngeal swabsInfluenza strainsLaboratory confirmationPandemic potentialS31N mutationPatient specimensClinical settingNGS assaysDrug resistance markersVirusFurther studiesCurrent diagnostic platformsPublic healthK mutationInfluenza
2009
Cytospin-Enhanced Immunofluorescence and Impact of Sample Quality on Detection of Novel Swine Origin (H1N1) Influenza Virus
Landry ML, Ferguson D. Cytospin-Enhanced Immunofluorescence and Impact of Sample Quality on Detection of Novel Swine Origin (H1N1) Influenza Virus. Journal Of Clinical Microbiology 2009, 48: 957-959. PMID: 20042632, PMCID: PMC2832425, DOI: 10.1128/jcm.01678-09.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnimalsChildChild, PreschoolClinical Laboratory TechniquesFluorescent Antibody Technique, DirectHumansInfantInfant, NewbornInfluenza A Virus, H1N1 SubtypeInfluenza, HumanNasopharynxReverse Transcriptase Polymerase Chain ReactionSensitivity and SpecificityVirologyYoung AdultConceptsNovel swine-origin influenza virusesSwine-origin influenza virusImmunofluorescence antibody testingReal-time reverse transcriptase PCRCycle threshold valuesPCR-positive resultsPediatric patientsCDC assayAntibody testingNasopharyngeal swabsReverse transcriptase-PCRSwine influenzaInfluenza virusTranscriptase-PCRPositive samplesPatientsPositive resultsInfluenzaSwabsCytospins
2003
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
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 resultsImmunoassayCells