2024
Barriers to Effective Infection Prevention in the Neonatal Intensive Care Unit
Weser V, Crocker A, Murray T, Wright J, Truesdell E, Ciaburri R, Marks A, Martinello R, Hieftje K, Team H. Barriers to Effective Infection Prevention in the Neonatal Intensive Care Unit. Advances In Neonatal Care 2024, 24: 475-484. PMID: 39196970, DOI: 10.1097/anc.0000000000001195.Peer-Reviewed Original ResearchConceptsPatients' family membersInfection preventionFamily membersGroup of nursesReduce nurses’ burdenHand hygieneHospital-wide surveyIntensive care unitInductive content analysisDesign of educational interventionsCare unitNeonatal intensive care unitImprove patient outcomesEffective infection preventionHH educationNursing burdenEducational interventionFrontline staffHospital staffNeonatal nursesIP educationPatient's familyRisk of infection transmissionFocus groupsIP behavior
2022
Association of Child Masking With COVID-19–Related Closures in US Childcare Programs
Murray TS, Malik AA, Shafiq M, Lee A, Harris C, Klotz M, Humphries JE, Patel KM, Wilkinson D, Yildirim I, Elharake JA, Diaz R, Reyes C, Omer SB, Gilliam WS. Association of Child Masking With COVID-19–Related Closures in US Childcare Programs. JAMA Network Open 2022, 5: e2141227. PMID: 35084484, PMCID: PMC8796014, DOI: 10.1001/jamanetworkopen.2021.41227.Peer-Reviewed Original ResearchConceptsCOVID-19 casesLower riskImportant public health policy implicationsCOVID-19-related closuresPublic health policy implicationsChildren 2 yearsElectronic survey studyCenter-based childcare programsHealth policy implicationsSARS-CoV-2Survey studyChildcare professionalsMAIN OUTCOMEProgram closureHealth policyStudy periodRobust SEsBaselineChildcare programsCOVID-19Young childrenChildcare settingsChildrenPhysical distancingAssociation
2021
COVID-19 Transmission in US Child Care Programs
Gilliam WS, Malik AA, Shafiq M, Klotz M, Reyes C, Humphries JE, Murray T, Elharake JA, Wilkinson D, Omer SB. COVID-19 Transmission in US Child Care Programs. Pediatrics 2021, 147: e2020031971. PMID: 33055228, DOI: 10.1542/peds.2020-031971.Peer-Reviewed Original ResearchConceptsCare programCOVID-19 transmissionCare providersCOVID-19Child care programsChild care providersPropensity score-matched case-control analysisCOVID-19 outcomesLogistic regression analysisCase-control analysisUS COVID-19 pandemicChild carePotential confoundersElevated riskHome-based providersCareUS pandemicRegression analysisCOVID-19 pandemicDegree of exposureExposureMonthsOutcomesEarly monthsProviders
2020
Severe Acute Respiratory Syndrome Coronavirus 2 Testing in Children in a Large Regional US Health System During the Coronavirus Disease 2019 Pandemic.
Peaper DR, Murdzek C, Oliveira CR, Murray TS. Severe Acute Respiratory Syndrome Coronavirus 2 Testing in Children in a Large Regional US Health System During the Coronavirus Disease 2019 Pandemic. The Pediatric Infectious Disease Journal 2020, 40: 175-181. PMID: 33399431, PMCID: PMC8852689, DOI: 10.1097/inf.0000000000003024.Peer-Reviewed Original ResearchConceptsYale New Haven Health SystemSevere acute respiratory syndrome coronavirus 2Acute respiratory syndrome coronavirus 2Respiratory syndrome coronavirus 2Syndrome coronavirus 2Subset of childrenPediatric casesHealth systemCycle threshold valuesCoronavirus 2Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNACross-sectional time-series studyCoronavirus disease 2019 (COVID-19) testingPositive pediatric casesSimilar cycle threshold valuesCoronavirus disease 2019 (COVID-19) pandemicUpper respiratory tractCoronavirus disease 2019Large health systemYears of ageDisease 2019 pandemicUS health systemAmbulatory locationsVirology resultsAsymptomatic childrenUnmasking symptomatic dermatographism in the time of COVID-19
Wong KH, Murray T, Osborn R, Soffer GK. Unmasking symptomatic dermatographism in the time of COVID-19. Postgraduate Medical Journal 2020, 97: 402-402. PMID: 32913035, PMCID: PMC10016992, DOI: 10.1136/postgradmedj-2020-138688.Peer-Reviewed Case Reports and Technical Notes
2019
Nebulizer cleaning and disinfection practices in families with cystic fibrosis: The relationship between attitudes, practice and microbe colonization
Murray TS, O'Rourke TK, Feinn R, Drapeau G, Collins MS. Nebulizer cleaning and disinfection practices in families with cystic fibrosis: The relationship between attitudes, practice and microbe colonization. Journal Of Cystic Fibrosis 2019, 18: 823-828. PMID: 31126899, DOI: 10.1016/j.jcf.2019.05.008.Peer-Reviewed Original ResearchConceptsInfection control practicesInfection preventionCystic fibrosisHome respiratory equipmentComplexity of careHome health careInfection control behaviorsControl practicesRespiratory equipmentHome nebulizersNew educational interventionDaily burdenHealth maintenanceLung pathogensEducation interventionRecovery of organismsEducational interventionHealth carePreventionMicrobe colonizationCareDisinfection practicesFibrosisFrequency of disinfectionSubset of familiesThe Ethics of Fecal Microbiota Transplant as a Tool for Antimicrobial Stewardship Programs
Murray TS, Herbst J. The Ethics of Fecal Microbiota Transplant as a Tool for Antimicrobial Stewardship Programs. The Journal Of Law, Medicine & Ethics 2019, 47: 541-554. PMID: 31957576, DOI: 10.1177/1073110519897730.Peer-Reviewed Original ResearchConceptsFecal microbiota transplantMultidrug-resistant organismsAntimicrobial stewardship programsMicrobiota transplantStewardship programsCurrent clinical indicationsPublic health threatPatient colonizationSevere recurrentAntibiotic useClinical indicationsResistant organismsAvailable antibioticsHealth threatTransplantAdditional evidenceTherapyInfectionRecurrent
2014
ESBL-producing Escherichia coli and Klebsiella pneumoniae at a tertiary care hospital in Saudi Arabia.
Somily AM, Habib HA, Absar MM, Arshad MZ, Manneh K, Al Subaie SS, Al Hedaithy MA, Sayyed SB, Shakoor Z, Murray TS. ESBL-producing Escherichia coli and Klebsiella pneumoniae at a tertiary care hospital in Saudi Arabia. The Journal Of Infection In Developing Countries 2014, 8: 1129-36. PMID: 25212077, DOI: 10.3855/jidc.4292.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAnti-Bacterial AgentsBeta-LactamasesBeta-LactamsChildChild, PreschoolEscherichia coliEscherichia coli InfectionsFemaleHumansInfantKlebsiella InfectionsKlebsiella pneumoniaeMaleMicrobial Sensitivity TestsMiddle AgedProspective StudiesSaudi ArabiaTertiary Care CentersYoung AdultConceptsTertiary care hospitalK. pneumoniaeCare hospitalStudy periodClavulanic acidKing Khalid University HospitalDeep wound swabsFrequency of ESBLK. pneumoniae isolatesESBL-producing E. coliExtended-spectrum β-lactamasesSterile body fluidsAnti-microbial susceptibilityESBL-producing isolatesOverall frequency rateE. coli resistanceESBL E. coliWound swabsUniversity HospitalEtest stripsPneumoniae isolatesBlood samplesSuperficial swabsAntibiotic susceptibilityFrequency rateExtended-spectrum β-lactamase-producing Klebsiella pneumoniae in the neonatal intensive care unit: Does vancomycin play a role?
Somily AM, Alsubaie SS, BinSaeed AA, Torchyan AA, Alzamil FA, Al-Aska AI, Al-Khattaf FS, Khalifa LA, Al-Thawadi SI, Alaidan AA, Al-Ahdal MN, Al-Qahtani AA, Murray TS. Extended-spectrum β-lactamase-producing Klebsiella pneumoniae in the neonatal intensive care unit: Does vancomycin play a role? American Journal Of Infection Control 2014, 42: 277-282. PMID: 24581016, DOI: 10.1016/j.ajic.2013.09.028.Peer-Reviewed Original ResearchConceptsNeonatal intensive care unitESBL-producing Klebsiella pneumoniaeIntensive care unitIncidence density ratioRisk factorsCare unitΒ-lactamase-producing Klebsiella pneumoniaeExtended-spectrum β-lactamase-producing Klebsiella pneumoniaeKlebsiella pneumoniaeRetrospective cohort studySignificant risk factorsPossible risk factorsExtended-spectrum β-lactamaseCohort studyParenteral feedingMechanical ventilationTeaching hospitalNeonatesKlebsiella speciesUnivariate analyzesPossible predictorsInfectionVancomycinΒ-lactamasePneumoniae
2013
Reduced Caveolin-1 Promotes Hyperinflammation due to Abnormal Heme Oxygenase-1 Localization in Lipopolysaccharide-Challenged Macrophages with Dysfunctional Cystic Fibrosis Transmembrane Conductance Regulator
Zhang PX, Murray TS, Villella VR, Ferrari E, Esposito S, D'Souza A, Raia V, Maiuri L, Krause DS, Egan ME, Bruscia EM. Reduced Caveolin-1 Promotes Hyperinflammation due to Abnormal Heme Oxygenase-1 Localization in Lipopolysaccharide-Challenged Macrophages with Dysfunctional Cystic Fibrosis Transmembrane Conductance Regulator. The Journal Of Immunology 2013, 190: 5196-5206. PMID: 23606537, PMCID: PMC3711148, DOI: 10.4049/jimmunol.1201607.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnimalsCaveolin 1Cells, CulturedChildChild, PreschoolCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorFemaleHeme Oxygenase-1HumansInflammationLipopolysaccharidesLung DiseasesMacrophagesMaleMembrane ProteinsMiceMice, KnockoutNasal PolypsReactive Oxygen SpeciesSignal TransductionToll-Like Receptor 4Young AdultConceptsCav-1 expressionHeme oxygenase-1Dysfunctional cystic fibrosis transmembrane conductance regulatorCystic fibrosis transmembrane conductance regulatorCell surfaceFibrosis transmembrane conductance regulatorProtein caveolin-1Cellular redox statusCell surface localizationCellular oxidative stateTransmembrane conductance regulatorHO-1 enzymePositive feed-forward loopCystic fibrosis macrophagesNegative regulatorCaveolin-1Conductance regulatorCell survivalHO-1 deliverySurface localizationRedox statusMΦ responsesHO-1/CO pathwayPathwayPotential target
2012
The Ability of Virulence Factor Expression by Pseudomonas aeruginosa to Predict Clinical Disease in Hospitalized Patients
Ledizet M, Murray TS, Puttagunta S, Slade MD, Quagliarello VJ, Kazmierczak BI. The Ability of Virulence Factor Expression by Pseudomonas aeruginosa to Predict Clinical Disease in Hospitalized Patients. PLOS ONE 2012, 7: e49578. PMID: 23152923, PMCID: PMC3495863, DOI: 10.1371/journal.pone.0049578.Peer-Reviewed Original ResearchConceptsP. aeruginosa infectionAeruginosa infectionBacterial factorsHospitalized patientsUrinary tractPositive P. aeruginosa culturesP. aeruginosaUrinary tract cathetersP. aeruginosa isolatesLogistic regression modelsPseudomonas aeruginosaProspective cohortDiabetes mellitusSubgroup analysisClinical dataTreatment decisionsClinical diseaseAeruginosa isolatesAnimal modelsPatientsClinical sitesFactor expressionInfectionHost factorsP. aeruginosa cultures
2009
Pseudomonas aeruginosa OspR is an oxidative stress sensing regulator that affects pigment production, antibiotic resistance and dissemination during infection
Lan L, Murray TS, Kazmierczak BI, He C. Pseudomonas aeruginosa OspR is an oxidative stress sensing regulator that affects pigment production, antibiotic resistance and dissemination during infection. Molecular Microbiology 2009, 75: 76-91. PMID: 19943895, PMCID: PMC2881571, DOI: 10.1111/j.1365-2958.2009.06955.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionAnimalsAnti-Bacterial AgentsBeta-Lactam ResistanceBeta-LactamsFemaleGene DeletionGene Expression Regulation, BacterialGlutathione PeroxidaseHydrogen PeroxideMiceMice, Inbred C57BLModels, BiologicalMutagenesis, Site-DirectedOxidative StressPigments, BiologicalPneumoniaPseudomonas aeruginosaPseudomonas InfectionsQuorum SensingRepressor ProteinsSignal TransductionStress, PhysiologicalTyrosineVirulenceConceptsOxidative stress sensingCys-24Stress sensingPigment productionNull mutant strainOxidative stressSerine substitution mutantsGlobal regulatorPromoter DNASubstitution mutantsAdditional genesInside hostsQuorum sensingCys residuesMutant strainConstitutive expressionMultiple pathwaysRegulatory effectsBeta-lactam resistanceGenesSignificant inductionRegulatorTyrosine metabolismOSPRP. aeruginosa
2006
Analysis of FimX, a phosphodiesterase that governs twitching motility in Pseudomonas aeruginosa
Kazmierczak BI, Lebron MB, Murray TS. Analysis of FimX, a phosphodiesterase that governs twitching motility in Pseudomonas aeruginosa. Molecular Microbiology 2006, 60: 1026-1043. PMID: 16677312, PMCID: PMC3609419, DOI: 10.1111/j.1365-2958.2006.05156.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacterial ProteinsCell MovementCyclic GMPEscherichia coli ProteinsFemaleFimbriae, BacterialHeLa CellsHumansMiceMice, Inbred C57BLPhosphoric Diester HydrolasesPhosphorus-Oxygen LyasesPneumonia, BacterialPoint MutationProtein Structure, TertiaryPseudomonas aeruginosaSequence DeletionVirulenceConceptsEAL domainBacterial poleGGDEF-EAL proteinsCyclic dimeric guanosine monophosphateDiguanylate cyclase activityPolar surface structuresType IV piliWild-type strainGGDEF domainDiguanylate cyclasesREC domainLocalization signalPilus assemblyGGDEFNon-polar sitesFimXSurface piliPseudomonas aeruginosaPhosphodiesterase activityBiofilm formationProteinMutantsPiliMotilityDomain