2024
Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort study
Neto F, Hitchings M, Amin A, de França G, Lind M, Torres M, Tsuha D, de Oliveira R, Cummings D, Dean N, Andrews J, Ko A, Croda J, Ranzani O. Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort study. The Lancet Regional Health - Americas 2024, 34: 100755. PMID: 38737773, PMCID: PMC11087726, DOI: 10.1016/j.lana.2024.100755.Peer-Reviewed Original ResearchSevere COVID-19Cohort ACohort B.Cohort BTwo-doseMRNA vaccinesPrimary outcomeBooster dose effectivenessCOVID-19 outcomesPopulation-based cohort studyDose of COVID-19 vaccinePopulation-based cohortPopulation-based cohort of individualsCOVID-19 vaccine dosesSevere COVID-19 outcomesFollow-upCohort studyMRNA-basedVaccine doseCohort of individualsVaccine effectivenessVaccine combinationsDoseLower hazardCohort
2023
Delay in the diagnosis and treatment of tuberculosis in prisons in Mato Grosso do Sul, Brazil
Ribeiro C, da Silva Santos A, Tshua D, de Oliveira R, Lemos E, Bourdillon P, Laranjeira A, Gonçalves C, Andrews J, Ko A, Croda J. Delay in the diagnosis and treatment of tuberculosis in prisons in Mato Grosso do Sul, Brazil. Revista Da Sociedade Brasileira De Medicina Tropical 2023, 56: e0015-2023. PMID: 37493729, PMCID: PMC10367220, DOI: 10.1590/0037-8682-0015-2023.Peer-Reviewed Original ResearchConceptsSymptom onsetFirst symptomsLargest male prisonPrison medical recordsTB case dataRetrospective cohort studyPulmonary TB casesYear of diagnosisStart of treatmentTreatment of TBTreatment of tuberculosisNumber of symptomsAverage timePercentage of cureProvider delayTB casesCohort studyTreatment initiationHIV statusSmoking statusTuberculosis casesTB transmissionFirst consultationPatient delayMedical records
2022
Linking rattiness, geography and environmental degradation to spillover Leptospira infections in marginalised urban settings: An eco-epidemiological community-based cohort study in Brazil
Eyre MT, Souza FN, Carvalho-Pereira T, Nery N, de Oliveira D, Cruz JS, Sacramento GA, Khalil H, Wunder EA, Hacker KP, Hagan JE, Childs JE, Reis MG, Begon M, Diggle PJ, Ko AI, Giorgi E, Costa F. Linking rattiness, geography and environmental degradation to spillover Leptospira infections in marginalised urban settings: An eco-epidemiological community-based cohort study in Brazil. ELife 2022, 11: e73120. PMID: 36111781, PMCID: PMC9560157, DOI: 10.7554/elife.73120.Peer-Reviewed Original ResearchConceptsInfection riskSignificant global public health burdenCommunity-based cohort studyGlobal public health burdenPublic health burdenAgents of leptospirosisExposure of interestYears of agePublic health interventionsHigh-risk communitiesJoint spatial modellingZoonotic spilloverCohort studyHuman infection riskMale genderSerological evidenceHealth burdenLeptospira infectionLeptospiral infectionInfection rateHealth interventionsEco-epidemiological studiesHealth surveillanceFundação de Amparo à PesquisaOswaldo Cruz FoundationAssociation of renalase with clinical outcomes in hospitalized patients with COVID-19
Safdar B, Wang M, Guo X, Cha C, Chun HJ, Deng Y, Dziura J, El-Khoury JM, Gorelick F, Ko AI, Lee AI, Safirstein R, Simonov M, Zhou B, Desir GV. Association of renalase with clinical outcomes in hospitalized patients with COVID-19. PLOS ONE 2022, 17: e0264178. PMID: 35259186, PMCID: PMC8903289, DOI: 10.1371/journal.pone.0264178.Peer-Reviewed Original ResearchConceptsCOVID-19 patientsRenalase levelsIntensive care unit admissionHospitalized COVID-19 patientsMean age 64 yearsCOVID-19Cox proportional hazards modelCare unit admissionPrimary composite outcomeRetrospective cohort studyUse of vasopressorsSevere COVID-19IL-6 levelsAge 64 yearsRisk of deathCOVID-19 subjectsInitial disease severityProportional hazards modelCOVID-19 diseasePlasma renalaseUnit admissionICU admissionCohort studyComposite outcomeCytokine levels
2021
Incidence and prevalence of tuberculosis in incarcerated populations: a systematic review and meta-analysis
Cords O, Martinez L, Warren JL, O’Marr J, Walter KS, Cohen T, Zheng J, Ko AI, Croda J, Andrews JR. Incidence and prevalence of tuberculosis in incarcerated populations: a systematic review and meta-analysis. The Lancet Public Health 2021, 6: e300-e308. PMID: 33765455, PMCID: PMC8168455, DOI: 10.1016/s2468-2667(21)00025-6.Peer-Reviewed Original ResearchConceptsPrevalence of tuberculosisIncidence of tuberculosisM tuberculosis infectionIncidence rate ratiosTuberculosis infectionGeneral populationSystematic reviewSouth-East Asia RegionIncarcerated populationsPopulation-level incidenceMycobacterium tuberculosis infectionRate ratioTuberculosis Control ProgrammeLILACS electronic databasesWHO Eastern Mediterranean RegionWHO South-East Asia RegionWeb of KnowledgeCohort studyUS National InstitutesSubgroup analysisPooled estimatesHigh riskElectronic databasesPreventive interventionsTuberculosisDevelopmental outcomes in children exposed to Zika virus in utero from a Brazilian urban slum cohort study
Ticona J, Nery N, Ladines-Lim JB, Gambrah C, Sacramento G, de Paula Freitas B, Bouzon J, Oliveira-Filho J, Borja A, Adhikarla H, Montoya M, Chin A, Wunder EA, Ballalai V, Vieira C, Belfort R, Almeida A, Reis MG, Harris E, Ko AI, Costa F. Developmental outcomes in children exposed to Zika virus in utero from a Brazilian urban slum cohort study. PLOS Neglected Tropical Diseases 2021, 15: e0009162. PMID: 33544730, PMCID: PMC7891708, DOI: 10.1371/journal.pntd.0009162.Peer-Reviewed Original ResearchConceptsPopulation attributable fractionZIKV exposureMonths of ageMild cognitive delayZika virus exposureZIKV-exposed childrenPopulation-based cohortCognitive delayDevelopmental alterationsMonoclonal antibody blockadeMonths of lifeGross birth defectsAppropriate control groupsProspective serosurveyCohort studyNeurodevelopmental outcomesAntibody blockadeNeurodevelopmental evaluationVirus exposureAttributable fractionBehavioral abnormalitiesControl groupRest of womenZika virusCohort
2020
Effects of Accounting for Interval-Censored Antibody Titer Decay on Seroincidence in a Longitudinal Cohort Study of Leptospirosis
Bonner K, Cruz JS, Sacramento GA, de Oliveira D, Nery N, Carvalho M, Costa F, Childs JE, Ko AI, Diggle PJ. Effects of Accounting for Interval-Censored Antibody Titer Decay on Seroincidence in a Longitudinal Cohort Study of Leptospirosis. American Journal Of Epidemiology 2020, 190: 893-899. PMID: 33274738, PMCID: PMC8096484, DOI: 10.1093/aje/kwaa253.Peer-Reviewed Original ResearchConceptsLongitudinal cohort studyCohort studyMicroscopic agglutination test titersAgglutination test titersHigh transmission settingsPoint-source exposureSeroincidence ratesEstimates of infectionRisk factorsTest titersReported casesEpidemiologic implicationsInfection rateMean infection rateSerological samplesSerological assaysLeptospirosis casesInfectionArboviral diseasesTiter dilutionsSeroincidenceSource exposureLeptospirosisSample size estimationInterval