2014
Intensified specimen collection to improve tuberculosis diagnosis in children from Rural South Africa, an observational study
Thomas TA, Heysell SK, Moodley P, Montreuil R, Ha X, Friedland G, Bamber SA, Moll AP, Gandhi N, Brant WE, Sturm W, Shah S. Intensified specimen collection to improve tuberculosis diagnosis in children from Rural South Africa, an observational study. BMC Infectious Diseases 2014, 14: 11. PMID: 24400822, PMCID: PMC3890632, DOI: 10.1186/1471-2334-14-11.Peer-Reviewed Original ResearchConceptsDrug susceptibility testingGastric aspiratesTB suspectsObservational studySpecimen collectionDrug-susceptible TBNew TB suspectsPediatric TB suspectsTB treatment historyXDR-TB casesMultiple specimen typesYears of ageSame-day methodTB settingsInduced sputumPersistent symptomsSputum inductionTB treatmentHIV statusNegative childrenTB diagnosisUrine cultureMean ageInpatient settingDiagnostic yield
2012
Nosocomial Transmission of Extensively Drug-Resistant Tuberculosis in a Rural Hospital in South Africa
Gandhi NR, Weissman D, Moodley P, Ramathal M, Elson I, Kreiswirth BN, Mathema B, Shashkina E, Rothenberg R, Moll AP, Friedland G, Sturm AW, Shah NS. Nosocomial Transmission of Extensively Drug-Resistant Tuberculosis in a Rural Hospital in South Africa. The Journal Of Infectious Diseases 2012, 207: 9-17. PMID: 23166374, PMCID: PMC3523793, DOI: 10.1093/infdis/jis631.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntitubercular AgentsCluster AnalysisCross InfectionDrug Therapy, CombinationEthambutolExtensively Drug-Resistant TuberculosisFemaleGenotypeHIV InfectionsHospitals, RuralHumansIsoniazidMaleMutationMycobacterium tuberculosisPolymorphism, Restriction Fragment LengthPrevalencePyrazinamideRetrospective StudiesRifampinSequence Analysis, DNASouth AfricaConceptsDrug-resistant tuberculosisHuman immunodeficiency virusNosocomial transmissionEpidemiologic linkExtensively Drug-Resistant TuberculosisPoor infection controlSmear-positive tuberculosisMultidrug-resistant tuberculosisHigh HIV prevalencePoint-source outbreakGlobal public health threatPublic health threatResistance-determining regionXDR tuberculosisImmunodeficiency virusHIV prevalenceObservational studyInfection controlRural hospitalsPatientsTuberculosisTugela FerryFragment length polymorphism analysisHealth threatRestriction fragment length polymorphism analysis
2011
Household contact investigation of multidrug-resistant and extensively drug-resistant tuberculosis in a high HIV prevalence setting
Vella V, Racalbuto V, Guerra R, Marra C, Moll A, Mhlanga Z, Maluleke M, Mhlope H, Margot B, Friedland G, Shah N, Gandhi N. Household contact investigation of multidrug-resistant and extensively drug-resistant tuberculosis in a high HIV prevalence setting. The International Journal Of Tuberculosis And Lung Disease 2011, 15: 1170-1175. PMID: 21943840, DOI: 10.5588/ijtld.10.0781.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAntitubercular AgentsExtensively Drug-Resistant TuberculosisFamily CharacteristicsFemaleFollow-Up StudiesHIV InfectionsHumansIncidenceMaleMicrobial Sensitivity TestsMiddle AgedPrevalenceProspective StudiesSouth AfricaTime FactorsTuberculosis, Multidrug-ResistantYoung AdultConceptsDrug-resistant tuberculosisHousehold contactsXDR-TBIndex caseMDR-TBPrevalence settingsHigh human immunodeficiency virus (HIV) prevalence settingsMDR-TB index casesHigh HIV prevalence settingsAdult household contactsHousehold contact investigationIndex case diagnosisMost secondary casesHIV prevalence settingsRate of MDRDrug susceptibility testingDiagnosis of MDRPublic health activitiesActive tuberculosisNosocomial transmissionContact investigationMedian timeIncidence rateSecondary casesObservational study
2009
HIV Coinfection in Multidrug- and Extensively Drug-Resistant Tuberculosis Results in High Early Mortality
Gandhi NR, Shah NS, Andrews JR, Vella V, Moll AP, Scott M, Weissman D, Marra C, Lalloo UG, Friedland GH. HIV Coinfection in Multidrug- and Extensively Drug-Resistant Tuberculosis Results in High Early Mortality. American Journal Of Respiratory And Critical Care Medicine 2009, 181: 80-86. PMID: 19833824, DOI: 10.1164/rccm.200907-0989oc.Peer-Reviewed Original ResearchConceptsXDR-TB casesHIV coinfection rateXDR-TB patientsOne-year mortalityTB casesXDR-TBTB patientsMDR-TBSputum collectionDrug-resistant tuberculosis epidemicHigh HIV prevalence regionsDrug susceptibility test resultsYear of diagnosisRetrospective observational studyHigh early mortalityAvailable medical recordsMajority of deathsHIV coinfectionAntiretroviral therapyHIV statusEarly mortalityMedical recordsTuberculosis resultsEarly initiationObservational study