2024
Molecular Epidemiology of Isoniazid-resistant M tuberculosis in Port-au-Prince, Haiti
Walsh K, Lee M, Chaguza C, Pamphile W, Royal G, Escuyer V, Pape J, Fitzgerald D, Cohen T, Ocheretina O. Molecular Epidemiology of Isoniazid-resistant M tuberculosis in Port-au-Prince, Haiti. Open Forum Infectious Diseases 2024, 11: ofae421. PMID: 39119477, PMCID: PMC11306977, DOI: 10.1093/ofid/ofae421.Peer-Reviewed Original ResearchCulture-positive pulmonary tuberculosisIsoniazid-resistant isolatesHR-TBIsoniazid-resistant M. tuberculosisPulmonary tuberculosisIsoniazid resistanceMutations associated with INH resistanceTransmission clustersGenoType MTBDRplus assayINH-resistant isolatesIsoniazid-susceptible isolatesPhenotypic isoniazid resistanceRifampin-susceptible tuberculosisSingle nucleotide polymorphism distancesMolecular epidemiologyAssociated with poor treatment outcomesWhole-genome sequencingM. tuberculosisPutative transmission clustersPoor treatment outcomesMTBDRplus assayGenoType MTBDRplusCulture-based testsINH resistanceTuberculosis clinic
2023
Development of treatment-decision algorithms for children evaluated for pulmonary tuberculosis: an individual participant data meta-analysis
Gunasekera K, Marcy O, Muñoz J, Lopez-Varela E, Sekadde M, Franke M, Bonnet M, Ahmed S, Amanullah F, Anwar A, Augusto O, Aurilio R, Banu S, Batool I, Brands A, Cain K, Carratalá-Castro L, Caws M, Click E, Cranmer L, García-Basteiro A, Hesseling A, Huynh J, Kabir S, Lecca L, Mandalakas A, Mavhunga F, Myint A, Myo K, Nampijja D, Nicol M, Orikiriza P, Palmer M, Sant'Anna C, Siddiqui S, Smith J, Song R, Thuong Thuong N, Ung V, van der Zalm M, Verkuijl S, Viney K, Walters E, Warren J, Zar H, Marais B, Graham S, Debray T, Cohen T, Seddon J. Development of treatment-decision algorithms for children evaluated for pulmonary tuberculosis: an individual participant data meta-analysis. The Lancet Child & Adolescent Health 2023, 7: 336-346. PMID: 36924781, PMCID: PMC10127218, DOI: 10.1016/s2352-4642(23)00004-4.Peer-Reviewed Original ResearchConceptsTreatment decision algorithmsPrimary health care settingsIndividual participant dataHigh tuberculosis incidencePulmonary tuberculosisManagement of tuberculosisHealth care centersComposite reference standardHealth care settingsClinical featuresTuberculosis incidenceClinical evaluationParticipant dataTreatment decisionsChest X-ray featuresPrimary health care centersFuture prospective evaluationTuberculosis-related mortalityEvidence-based algorithmChest X-rayVariable diagnostic performanceMultivariable prediction modelReference standardEvidence-based approachTuberculosis experts
2021
Development of a Treatment-decision Algorithm for Human Immunodeficiency Virus–uninfected Children Evaluated for Pulmonary Tuberculosis
Gunasekera KS, Walters E, van der Zalm MM, Palmer M, Warren JL, Hesseling AC, Cohen T, Seddon JA. Development of a Treatment-decision Algorithm for Human Immunodeficiency Virus–uninfected Children Evaluated for Pulmonary Tuberculosis. Clinical Infectious Diseases 2021, 73: e904-e912. PMID: 33449999, PMCID: PMC8366829, DOI: 10.1093/cid/ciab018.Peer-Reviewed Original ResearchConceptsPulmonary tuberculosisClinical evidenceXpert MTB/RIFBaseline clinical evaluationChest radiographic resultsRapid treatment initiationNational Tuberculosis ProgrammeTreatment decision algorithmsEvidence-based algorithmMTB/RIFDiagnosis of tuberculosisChest radiographicAntituberculosis treatmentProspective cohortRadiographic resultsTreatment initiationTuberculosis casesTuberculosis ProgrammeClinical evaluationCase definitionTreatment decisionsGlobal burdenChildhood mortalityChildren EvaluatedRapid clinical diagnosis
2020
Risk factors for recurrent tuberculosis after successful treatment in a high burden setting: a cohort study
Cudahy PGT, Wilson D, Cohen T. Risk factors for recurrent tuberculosis after successful treatment in a high burden setting: a cohort study. BMC Infectious Diseases 2020, 20: 789. PMID: 33097000, PMCID: PMC7585300, DOI: 10.1186/s12879-020-05515-4.Peer-Reviewed Original ResearchConceptsM. tuberculosis infectionRecurrent tuberculosisSuccessful treatmentTuberculosis recurrenceHazard ratioSmear gradeTuberculosis infectionRisk factorsSmear-positive pulmonary tuberculosisCox proportional hazards modelSputum smear gradeRepetitive unit-variable number tandem repeat (MIRU-VNTR) typingHigh-burden settingsRisk of recurrenceProportional hazards modelSuccessful treatment completionRecurrent diseaseCohort studyPulmonary tuberculosisBurden settingsClinical presentationRecurrent episodesInitial episodeNumber tandem repeat typingTreatment completion
2019
Transmissibility and potential for disease progression of drug resistant Mycobacterium tuberculosis: prospective cohort study
Becerra MC, Huang CC, Lecca L, Bayona J, Contreras C, Calderon R, Yataco R, Galea J, Zhang Z, Atwood S, Cohen T, Mitnick CD, Farmer P, Murray M. Transmissibility and potential for disease progression of drug resistant Mycobacterium tuberculosis: prospective cohort study. The BMJ 2019, 367: l5894. PMID: 31649017, PMCID: PMC6812583, DOI: 10.1136/bmj.l5894.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAntitubercular AgentsChildChild, PreschoolContact TracingDisease ProgressionFemaleFollow-Up StudiesHumansIncidenceInfantInfant, NewbornIsoniazidKaplan-Meier EstimateMaleMicrobial Sensitivity TestsMiddle AgedMycobacterium tuberculosisPeruProspective StudiesRifampinSputumTuberculin TestTuberculosis, Multidrug-ResistantTuberculosis, PulmonaryYoung AdultConceptsDrug-sensitive tuberculosisMultidrug-resistant tuberculosisHousehold contactsProspective cohort studySensitive tuberculosisTuberculosis infectionResistant tuberculosisCohort studyTuberculosis diseaseHigh riskDrug-resistant Mycobacterium tuberculosisIncident tuberculosis diseasePhenotypic drug resistanceDistrict Health CenterResistant Mycobacterium tuberculosisDrug-susceptible strainsDrug resistance profilesActive diseasePulmonary tuberculosisDisease progressionGuideline producersHealth centersIndex patientsEffective treatmentPatients
2017
Protective effects of household-based TB interventions are robust to neighbourhood-level variation in exposure risk in Lima, Peru: a model-based analysis
Zelner J, Murray M, Becerra M, Galea J, Lecca L, Calderon R, Yataco R, Zhang Z, Cohen T. Protective effects of household-based TB interventions are robust to neighbourhood-level variation in exposure risk in Lima, Peru: a model-based analysis. International Journal Of Epidemiology 2017, 47: 185-192. PMID: 29025111, DOI: 10.1093/ije/dyx171.Peer-Reviewed Original ResearchConceptsIsoniazid preventive therapyLatent TB infectionTB casesHousehold contactsHousehold exposureTB diseaseHealth centersPopulation-based prospective cohort studyHigh-risk household contactsMore casesBlanket screeningIncident pulmonary tuberculosisIncident TB diseasePositive household contactsProspective cohort studyTB screening programPublic Health CenterIncident tuberculosisTB infectionCohort studyPreventive therapyPulmonary tuberculosisTB incidenceSkin testTB risk
2014
Age-Specific Risks of Tuberculosis Infection From Household and Community Exposures and Opportunities for Interventions in a High-Burden Setting
Zelner JL, Murray MB, Becerra MC, Galea J, Lecca L, Calderon R, Yataco R, Contreras C, Zhang Z, Grenfell BT, Cohen T. Age-Specific Risks of Tuberculosis Infection From Household and Community Exposures and Opportunities for Interventions in a High-Burden Setting. American Journal Of Epidemiology 2014, 180: 853-861. PMID: 25190676, PMCID: PMC4188339, DOI: 10.1093/aje/kwu192.Peer-Reviewed Original ResearchConceptsLatent tuberculosis infectionHousehold contactsAge-specific riskYears of ageTuberculosis infectionLarge population-based prospective cohort studyPopulation-based prospective cohort studyHousehold exposureBacillus Calmette-Guérin (BCG) vaccineIncident pulmonary tuberculosisCommunity exposureProspective cohort studyCalmette-Guérin vaccineHigh-burden settingsPublic Health CenterCommunity-based transmissionRisk of infectionCohort studyLTBI prevalencePreventive therapyPulmonary tuberculosisTuberculosis patientsTuberculosis casesHousehold transmissionExcess riskBacillus Calmette-Guérin and Isoniazid Preventive Therapy Protect Contacts of Patients with Tuberculosis
Zelner JL, Murray MB, Becerra MC, Galea J, Lecca L, Calderon R, Yataco R, Contreras C, Zhang Z, Grenfell BT, Cohen T. Bacillus Calmette-Guérin and Isoniazid Preventive Therapy Protect Contacts of Patients with Tuberculosis. American Journal Of Respiratory And Critical Care Medicine 2014, 189: 853-859. PMID: 24592878, PMCID: PMC4225829, DOI: 10.1164/rccm.201310-1896oc.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAgedAged, 80 and overAntitubercular AgentsBCG VaccineChildChild, PreschoolContact TracingFemaleFollow-Up StudiesHumansInfantIsoniazidMaleMiddle AgedModels, StatisticalModels, TheoreticalMultivariate AnalysisOdds RatioPeruProspective StudiesTreatment OutcomeTuberculosis, PulmonaryYoung AdultConceptsIsoniazid preventive therapyAge-specific efficacyLatent TB infectionIncident tuberculosisHousehold contactsTB diseaseTB infectionPulmonary tuberculosisRisk ratioUse of IPTObservational prospective cohort studyBacillus Calmette-Guérin (BCG) vaccinationHigh TB burden settingsAdditional TB casesHIV-positive contactsIncident pulmonary tuberculosisHIV-negative childrenProspective cohort studyPublic Health CenterBacillus Calmette-GuérinYear-long followWorld Health OrganizationCohort studyPreventive therapyTB cases
2012
The impact of new tuberculosis diagnostics on transmission: why context matters
Lin HH, Dowdy D, Dye C, Murray M, Cohen T. The impact of new tuberculosis diagnostics on transmission: why context matters. Bulletin Of The World Health Organization 2012, 90: 739-747. PMID: 23109741, PMCID: PMC3471051, DOI: 10.2471/blt.11.101436.Peer-Reviewed Original ResearchConceptsNew tuberculosis diagnosticsNew diagnostic toolsPatient lossHuman immunodeficiency virus (HIV) infectionTuberculosis diagnosticsSmear-negative pulmonary tuberculosisDiagnostic toolImmunodeficiency virus infectionTreatment success rateSmear-negative casesIncidence of tuberculosisEpidemiology of tuberculosisPatient defaultPulmonary tuberculosisTuberculosis careDiagnostic pathwayTuberculosis transmissionSymptomatic individualsVirus infectionSmear microscopyTuberculosisAnnual declineDiagnosisAbsolute changeSuccess rateOutcomes among tuberculosis patients with isoniazid resistance in Georgia, 2007-2009.
Gegia M, Cohen T, Kalandadze I, Vashakidze L, Furin J. Outcomes among tuberculosis patients with isoniazid resistance in Georgia, 2007-2009. The International Journal Of Tuberculosis And Lung Disease 2012, 16: 812-6. PMID: 22507372, PMCID: PMC3786434, DOI: 10.5588/ijtld.11.0637.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntitubercular AgentsChi-Square DistributionDrug Resistance, BacterialDrug Therapy, CombinationEthambutolFemaleGeorgia (Republic)HumansIsoniazidLogistic ModelsMaleMicrobial Sensitivity TestsMiddle AgedMultivariate AnalysisMycobacterium tuberculosisPredictive Value of TestsPyrazinamideRetrospective StudiesRifampinRisk AssessmentRisk FactorsSputumTime FactorsTreatment OutcomeTuberculosisConceptsPulmonary tuberculosisPrevious treatmentOutcomes of patientsPulmonary TB patientsSubset of patientsRetrospective record reviewForms of tuberculosisFirst-line drugsHigh TB ratesDrug-resistant formsLower ratesLow tuberculosisTB patientsTuberculosis patientsOptimal management strategyTreatment regimenRecord reviewTB ratesTreatment successTreatment outcomesCountry of GeorgiaPatientsIsoniazid resistanceTuberculosisDrug resistance