2016
Genomic diversity in autopsy samples reveals within-host dissemination of HIV-associated Mycobacterium tuberculosis
Lieberman TD, Wilson D, Misra R, Xiong LL, Moodley P, Cohen T, Kishony R. Genomic diversity in autopsy samples reveals within-host dissemination of HIV-associated Mycobacterium tuberculosis. Nature Medicine 2016, 22: 1470-1474. PMID: 27798613, PMCID: PMC5508070, DOI: 10.1038/nm.4205.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAutopsyBacteriological TechniquesCoinfectionDNA, BacterialFemaleGenetic VariationHIV InfectionsHumansLiverLungLymph NodesMaleMiddle AgedMycobacterium tuberculosisPhylogenyPolymorphism, Single NucleotideSouth AfricaSpleenTuberculosisTuberculosis, HepaticTuberculosis, Lymph NodeTuberculosis, PulmonaryTuberculosis, SplenicHigh burden of prevalent tuberculosis among previously treated people in Southern Africa suggests potential for targeted control interventions
Marx FM, Floyd S, Ayles H, Godfrey-Faussett P, Beyers N, Cohen T. High burden of prevalent tuberculosis among previously treated people in Southern Africa suggests potential for targeted control interventions. European Respiratory Journal 2016, 48: 1227-1230. PMID: 27390274, PMCID: PMC5512114, DOI: 10.1183/13993003.00716-2016.Peer-Reviewed Original ResearchConceptsHigh-burden settingsHigh TB prevalenceRecurrent tuberculosisExogenous reinfectionPrevalent tuberculosisTB prevalenceSuccessful treatmentHigh burdenImportant underlying mechanismHigh riskHigh incidenceControl interventionsTargeted interventionsTuberculosisUnderlying mechanismOne-thirdInterventionBurdenCape TownIndividualsReinfectionPrevalenceIncidenceDiseaseSettingAssessing the utility of Xpert® MTB/RIF as a screening tool for patients admitted to medical wards in South Africa
Heidebrecht CL, Podewils LJ, Pym AS, Cohen T, Mthiyane T, Wilson D. Assessing the utility of Xpert® MTB/RIF as a screening tool for patients admitted to medical wards in South Africa. Scientific Reports 2016, 6: 19391. PMID: 26786396, PMCID: PMC4726405, DOI: 10.1038/srep19391.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCoinfectionDrug Resistance, BacterialFemaleHIV InfectionsHumansMaleMass ScreeningMicrobial Sensitivity TestsMiddle AgedMycobacterium tuberculosisNucleic Acid Amplification TechniquesReproducibility of ResultsRifampinSouth AfricaTuberculosis, Multidrug-ResistantYoung AdultConceptsChest X-rayMTB/RIFMedical wardsScreening toolAdditional TB casesInfection control actionsUtility of GeneXpertTB/HIVConsecutive adult patientsProportion of patientsRifampicin-resistant tuberculosisDrug-resistant tuberculosisLarge public hospitalTB diseaseAdult patientsStandard careTB casesTB screeningMedical admissionsMedical chartsHospital inpatientsSputum specimensGeneXpertPatientsRifampicin resistance
2015
HIV burden in men who have sex with men: a prospective cohort study 2007–2012
Jia Z, Huang X, Wu H, Zhang T, Li N, Ding P, Sun Y, Liu Z, Wei F, Zhang H, Jiao Y, Ji Y, Zhang Y, Guo C, Li W, Mou D, Xia W, Li Z, Chen D, Yan H, Chen X, Zhao J, Meyers K, Cohen T, Mayer K, Salomon JA, Lu Z, Dye C. HIV burden in men who have sex with men: a prospective cohort study 2007–2012. Scientific Reports 2015, 5: 11205. PMID: 26135810, PMCID: PMC5393284, DOI: 10.1038/srep11205.Peer-Reviewed Original ResearchConceptsHIV infectionHIV-negative MSMProspective cohort studyHIV incidence ratesIntensive preventive interventionIncident HIVCohort studyHIV burdenHIV incidenceIncident casesRisk factorsIncidence rateEarly treatmentPrevalent casesChinese MSMHIVPreventive interventionsInfectionMSMFollowPerfect complianceMenEnrollmentSyphilisCohortThe potential impact of coinfection on antimicrobial chemotherapy and drug resistance
Birger RB, Kouyos RD, Cohen T, Griffiths EC, Huijben S, Mina MJ, Volkova V, Grenfell B, Metcalf CJE. The potential impact of coinfection on antimicrobial chemotherapy and drug resistance. Trends In Microbiology 2015, 23: 537-544. PMID: 26028590, PMCID: PMC4835347, DOI: 10.1016/j.tim.2015.05.002.Peer-Reviewed Original Research
2014
Magnitude and sources of bias in the detection of mixed strain M. tuberculosis infection
Plazzotta G, Cohen T, Colijn C. Magnitude and sources of bias in the detection of mixed strain M. tuberculosis infection. Journal Of Theoretical Biology 2014, 368: 67-73. PMID: 25553967, PMCID: PMC7011203, DOI: 10.1016/j.jtbi.2014.12.009.Peer-Reviewed Original ResearchConceptsMixed infectionsM. tuberculosis infectionIncidence of TBOutcome of treatmentPopulation-level interventionsFraction of casesTuberculosis infectionMinority strainsActual prevalenceInfected individualsInfectionStudy designMycobacterium tuberculosisPrevalenceSputumTuberculosisDistinct strainsDifferent strainsSources of biasPrevious studiesPatientsSpecific reasonsIncidenceIndividualsHow can mathematical models advance tuberculosis control in high HIV prevalence settings?
Houben RM, Dowdy DW, Vassall A, Cohen T, Nicol MP, Granich RM, Shea JE, Eckhoff P, Dye C, Kimerling ME, White RG, . How can mathematical models advance tuberculosis control in high HIV prevalence settings? The International Journal Of Tuberculosis And Lung Disease 2014, 18: 509-514. PMID: 24903784, PMCID: PMC4436821, DOI: 10.5588/ijtld.13.0773.Peer-Reviewed Original ResearchConceptsHigh HIV prevalence settingsHIV prevalence settingsTB-HIVTuberculosis controlPrevalence settingsHigh human immunodeficiency virus (HIV) prevalenceHuman immunodeficiency virus (HIV) prevalenceTB ModellingHealth policy makersDifficult diagnosisDisease progressionHigh riskHigh mortalityHealth systemNatural progressionVirus prevalencePublic healthProgressionMortalityPrevalenceSettingAnalysis ConsortiumDiagnosisExpert discussionHigh risk and rapid appearance of multidrug resistance during tuberculosis treatment in Moldova.
Jenkins HE, Crudu V, Soltan V, Ciobanu A, Domente L, Cohen T. High risk and rapid appearance of multidrug resistance during tuberculosis treatment in Moldova. European Respiratory Journal 2014, 43: 1132-41. PMID: 24558181, PMCID: PMC4005038, DOI: 10.1183/09031936.00203613.Peer-Reviewed Original ResearchConceptsMultidrug-resistant tuberculosisMDR-TB diagnosisMDR-TB casesTB treatmentFirst-line TB drugsAmbulatory TB treatmentMDR-TB riskDrug susceptibility testingNosocomial transmissionInitial diagnosisPercentage of individualsTB drugsTuberculosis treatmentEarly treatmentHigh riskSputum specimensSurveillance databasePrevious incarcerationDrug resistanceMultidrug resistanceDiagnosisTreatmentBaseline resistanceRapid appearanceRisk
2012
Mixed-Strain Mycobacterium tuberculosis Infections and the Implications for Tuberculosis Treatment and Control
Cohen T, van Helden PD, Wilson D, Colijn C, McLaughlin MM, Abubakar I, Warren RM. Mixed-Strain Mycobacterium tuberculosis Infections and the Implications for Tuberculosis Treatment and Control. Clinical Microbiology Reviews 2012, 25: 708-719. PMID: 23034327, PMCID: PMC3485752, DOI: 10.1128/cmr.00021-12.Peer-Reviewed Original ResearchConceptsMixed infectionsTuberculosis infectionM. tuberculosis infectionTuberculosis control strategiesMycobacterium tuberculosis infectionTreatment of patientsMultiple distinct strainsTuberculosis treatmentInfectionMycobacterium tuberculosisEpidemiological importanceDistinct strainsTreatmentNumerous studiesPatientsTuberculosisDiagnosisHighlight challengesIndividuals