Elizabeth Corbett
Research Associate 2-ImmunobiologyCards
About
Research
Publications
2026
Economic barriers to diagnostic equity: A multi-country analysis of patient costs for rapid SARS-CoV-2 testing in sub-Saharan Africa
Ekwunife O, Mangenah C, Ngwira L, Corbett E, Hatzold K, Isere E, Bimba J, Sibanda E, Cowan F, Omoregie G, Bonnet G. Economic barriers to diagnostic equity: A multi-country analysis of patient costs for rapid SARS-CoV-2 testing in sub-Saharan Africa. PLOS ONE 2026, 21: e0350288. PMID: 42228702, PMCID: PMC13229357, DOI: 10.1371/journal.pone.0350288.Peer-Reviewed Original ResearchConceptsPrimary healthcare centersCatastrophic health expenditureCommunity pharmaciesPatient costsMulti-country analysisHealthcare centersHealth expenditureRandom sample of adultsSub-Saharan AfricaIncidence of catastrophic health expenditureRandom sampleUniversal health coverageDrug storesSample of adultsTesting modalitiesNon-medical expensesHealthcare providersSARS-CoV-2 testingSelf-testingHealth coverageSARS-CoV-2Indirect costsClient's perspectiveFinancial burdenLower-cost optionThe use of urinary lateral-flow lipoarabinomannan assays for TB diagnosis in children
Sabi I, Olbrich L, Olomi W, Mfinanga A, Zar H, Nicol M, Franckling-Smith Z, Khosa C, Banze D, Nliwasa M, Corbett E, Semphere R, Verghese V, Michael J, Larsson L, Graham S, Song R, Nabeta P, Trollip A, Hoelscher M, Geldmacher C, Ntinginya N, Heinrich N, Consortium O. The use of urinary lateral-flow lipoarabinomannan assays for TB diagnosis in children. IJTLD OPEN 2026, 3: 327-334. PMID: 42125007, PMCID: PMC13160273, DOI: 10.5588/ijtldopen.25.0667.Peer-Reviewed Original ResearchTB diagnosisFujifilm SILVAMP TB LAMNon-sputum-based testSensitivity of FujiLAMUrine-based biomarkersMicrobiological reference standardChildhood TB diagnosisDiagnosis of TBSevere acute malnutritionLipoarabinomannan assayTB categoryTB-LAMMedian ageFujiLAMAcute malnutritionClinical dataTB diseaseReference standardConsensus criteriaUrine samplesDiagnosisOverall specificityUrineNon-invasiveYoung adolescentsPerceived gender equitable norms and previous tuberculosis testing in Malawi: A secondary analysis of a cluster-based prevalence survey
Di Giacomo E, Nightingale E, MacPherson P, Feasey H, Soko R, Phiri V, Corbett E, Horton K. Perceived gender equitable norms and previous tuberculosis testing in Malawi: A secondary analysis of a cluster-based prevalence survey. PLOS Global Public Health 2026, 6: e0004620. PMID: 41678458, PMCID: PMC12900314, DOI: 10.1371/journal.pgph.0004620.Peer-Reviewed Original ResearchTesting historyTailored public health strategiesPrevalence surveyGender equitable normsPublic health strategiesGEM scoreTB servicesHealth strategiesSociodemographic covariatesEffect modificationSecondary analysisMalawian menBivariate analysisTesting behaviorLogistic regressionAge groupsOlder menPrevalence of tuberculosisWomenGender normsScoresGender rolesMenGenderPrevalenceAcceptability of COVID-19 self-testing among social and clinical vulnerable populations using a decentralized testing model in Abuja, Nigeria; A mixed methods analysis of an implementation study
Isere E, Bimba J, Dunkley Y, Atuwo D, Nightingale E, Ekwu J, Ibrahim A, Adamu G, Omoregie G, Okonkwo Y, Desmond N, Hatzold K, Corbett E. Acceptability of COVID-19 self-testing among social and clinical vulnerable populations using a decentralized testing model in Abuja, Nigeria; A mixed methods analysis of an implementation study. PLOS Global Public Health 2026, 6: e0005679. PMID: 41525259, PMCID: PMC12795379, DOI: 10.1371/journal.pgph.0005679.Peer-Reviewed Original ResearchPrimary health centresPatent medicine storesCommunity pharmaciesClinically vulnerable populationVulnerable populationsAcceptability of self-testingClinical vulnerabilityMixed-methods studySocially vulnerable individualsHealth centresLower educationDiagnostic testsImplementation studySocial vulnerabilityTesting ratesMedicine storesCOVID-19 testingLogistic regressionVulnerable groupsInfectious disease outbreaksRapid diagnostic testsAntigen rapid diagnostic testsLow wealthSymptomatic individualsCOVID-19
2025
COVID-19 diagnosis within five days of symptoms onset among healthcare workers in Malawi; Non-randomized control trial of self-testing using Ag-RDTs
Banda C, Lora W, Ngwira L, Dunkley Y, Nightingale E, Mwenelupembe H, Chilongosi R, Bonnet G, Desmond N, Corbett E, Hatzhold K, Choko A. COVID-19 diagnosis within five days of symptoms onset among healthcare workers in Malawi; Non-randomized control trial of self-testing using Ag-RDTs. PLOS Global Public Health 2025, 5: e0005604. PMID: 41401183, PMCID: PMC12707653, DOI: 10.1371/journal.pgph.0005604.Peer-Reviewed Original ResearchStandard of care armNon-randomized controlled trialsHealthcare workersCOVID-19 positive diagnosisCOVID-19 self-testingSelf-testing armAg-RDTPrimary healthcare facilitiesNon-randomised cluster trialsSelf-testingHealth care facilitiesCluster-level summariesRapid diagnostic test kitPositive diagnosisResource-constrained settingsCOVID-19 diagnosisCOVID-19 positive healthcare workersCare armSustainable modelDays of symptomsHealth servicesCluster trialCare facilitiesPositive healthcare workersIntention-to-treatUnderstanding the acceptability of COVID-19 antigen rapid diagnostic tests: A multi-country qualitative study
Lora W, Dunkley Y, Kabonga I, Isere E, Phiri M, Banda C, Sibanda E, Bimba J, Chilongosi R, Hatzold K, Cowan F, Corbett E, Choko A, Desmond N. Understanding the acceptability of COVID-19 antigen rapid diagnostic tests: A multi-country qualitative study. PLOS Global Public Health 2025, 5: e0005119. PMID: 41284655, PMCID: PMC12643265, DOI: 10.1371/journal.pgph.0005119.Peer-Reviewed Original ResearchResource-constrained settingsRapid diagnostic testsAntigen rapid diagnostic testsDelivery modelsParticipants' experiencesQualitative studyAg-RDTCOVID-19 testingMulti-country qualitative studyDiagnostic testsConstant comparison methodReal-time polymerase chain reaction testCOVID-19 pandemicReduce stigmaAg-RDT testingIn-depth interviewsThematic approachPolymerase chain reaction testHealthcare systemHealthcare workersHealthcare innovationProlonged turnaround timeCommunity membersParticipant groupsSurveillance systemProvider costs of professional COVID-19 rapid antigen testing in low-income settings
Mangenah C, Ngwira L, Ekwunife O, Sande L, Bonnet G, Chiwawa P, Mashoko L, Nkhoma D, Mwase N, Isere E, Kabonga I, Watadzaushe C, Chinoruma R, Dunkley Y, Choko A, Bimba J, Maponga B, Taruberekera N, Sibanda E, Cowan F, Hatzold K, Corbett E, Bonnet G. Provider costs of professional COVID-19 rapid antigen testing in low-income settings. PLOS Global Public Health 2025, 5: e0005251. PMID: 41060934, PMCID: PMC12507259, DOI: 10.1371/journal.pgph.0005251.Peer-Reviewed Original ResearchSARS-CoV-2 testingKey populationsGeneral populationProvider costsPrimary care facilitiesOutpatient departmentLow-income settingsHigh riskHigh risk of severe illnessRisk of severe illnessHealth providersNon-governmental organisationsAverage costResource-limited settingsAnnual economic costCare facilitiesSymptom screeningMicro-costingTesting servicesRapid diagnostic testsMulti-countryCOVID-19ProvidersMalawiExpenditure analysisHIV self-testing – the path from an innovation to a necessity
Jamil M, Johnson C, Hatzold K, Chidarikire T, Corbett E, Baggaley R, Wong V. HIV self-testing – the path from an innovation to a necessity. BMC Infectious Diseases 2025, 22: 930. PMID: 40691786, PMCID: PMC12278533, DOI: 10.1186/s12879-025-11272-z.Commentaries, Editorials and LettersSex differences in the risk of Mycobacterium tuberculosis infection: a systematic review and meta-analysis of population-based immunoreactivity surveys
Rickman H, Phiri M, Feasey H, Krutikov M, Shao H, Horton K, Dowdy D, Nightingale E, Dodd P, Corbett E, MacPherson P. Sex differences in the risk of Mycobacterium tuberculosis infection: a systematic review and meta-analysis of population-based immunoreactivity surveys. The Lancet Public Health 2025, 10: e588-e598. PMID: 40602858, DOI: 10.1016/s2468-2667(25)00120-3.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsPrevalence ratiosSystematic reviewRisk of Mycobacterium tuberculosis infectionTuberculosis incidenceCross-sectional surveyPublic health interventionsGlobal Health databasesMeta-analysisExposure to Mycobacterium tuberculosisGlobal Index MedicusBetween-study heterogeneityControl groupMycobacterium tuberculosis infectionSex-disaggregated resultsCase-control studyTuberculosis incidence settingsHealth interventionsHealth databasesBaseline surveySex differencesTuberculosis infectionCohort studyInclusion criteriaDuration of infectiousnessIncidence settingsWho has never tested for HIV following a community-based distribution of HIV self-test kits? Establishing associated predictors in rural Zimbabwe
Murenjekwa W, Chidhanguro K, Cowan F, Lampe F, Johnson C, Mpofu A, Ncube G, Mugurungi O, Hatzold K, Corbett E, Phillips A, Sibanda E, Cambiano V. Who has never tested for HIV following a community-based distribution of HIV self-test kits? Establishing associated predictors in rural Zimbabwe. PLOS Global Public Health 2025, 5: e0004459. PMID: 40305627, PMCID: PMC12043167, DOI: 10.1371/journal.pgph.0004459.Peer-Reviewed Original ResearchDistribution of HIV self-testing kitsHIV self-test kitsSelf-test kitsCommunity-based distributionStigmatizing beliefsRural ZimbabweImprove HIV testingCluster randomised trialHousehold surveyMinistry of HealthHIV testingUNAIDS targetsTargeted interventionsHIV riskRural districtsCondomless sexPerceived lackSurvey participantsDesign interventionsLogistic regressionRandomised trialsAnalysed dataHIVParticipantsYoung people