Ernest Asare, PhD
Associate Research Scientist in Epidemiology (Microbial Diseases)Cards
About
Research
Publications
2025
How well do disease-specific studies and WHO-CHOICE cost estimates align? Example of estimating cost per episode of diarrhoea and respiratory syncytial virus in 128 low-income and middle-income countries
Li X, Bilcke J, Asare E, Wenger C, Kwon J, Bont L, Beutels P, Pitzer V. How well do disease-specific studies and WHO-CHOICE cost estimates align? Example of estimating cost per episode of diarrhoea and respiratory syncytial virus in 128 low-income and middle-income countries. BMJ Global Health 2025, 10: e016784. PMID: 40850784, PMCID: PMC12382583, DOI: 10.1136/bmjgh-2024-016784.Peer-Reviewed Original ResearchConceptsRespiratory syncytial virusRSV-related diseaseWHO-CHOICE estimatesEpisodes of diarrheaLower middle-incomeWHO-CHOICELow-incomeUpper middle-incomeSyncytial virusRSV studiesInpatient costsMiddle-incomeDiarrhoeal diseaseEconomic evaluationCost studiesMiddle-income countriesDisease-specific diagnosisRSV-specificDisease-specific costsCost-effectiveness studiesDisease-specific studiesOutpatient costsEmpirical studiesDiarrheaCountry-specific dataDrought, Extreme Heat, and Intimate Partner Violence in Low- and Middle-Income Countries
Wang P, Chu L, Ban J, Asare E, Sivakami M, Henao A, Chimoyi L, Sullivan T, Chen K. Drought, Extreme Heat, and Intimate Partner Violence in Low- and Middle-Income Countries. JAMA Network Open 2025, 8: e2527818. PMID: 40833696, PMCID: PMC12368687, DOI: 10.1001/jamanetworkopen.2025.27818.Peer-Reviewed Original ResearchConceptsIntimate partner violenceIntimate partner violence riskPartner violenceHigher risk of intimate partner violenceRisk of intimate partner violenceSexual intimate partner violenceMiddle-income countriesViolation of human rightsSub-Saharan AfricaCross-sectional studySexual violenceDomestic violenceEmotional violencePhysical violenceViolenceLatin AmericaHigh riskHuman rightsMiddle-incomeSoutheast AsiaCountriesWomenEvaluating the kidney disease progression using a comprehensive patient profiling algorithm: A hybrid clustering approach
Al-Mamun M, Jeun K, Brothers T, Asare E, Shawwa K, Ahmed I. Evaluating the kidney disease progression using a comprehensive patient profiling algorithm: A hybrid clustering approach. PLOS ONE 2025, 20: e0310749. PMID: 40644387, PMCID: PMC12250582, DOI: 10.1371/journal.pone.0310749.Peer-Reviewed Original ResearchConceptsAcute kidney injuryChronic kidney diseaseHA-AKINo-AKI groupCA-AKINo-AKIRisk factorsElectronic health record dataHealth record dataReduce healthcare expendituresHistory of ischemic heart diseaseAcute kidney injury groupAKI to CKD progressionChronic kidney disease patientsOpiate analgesic useAcute kidney injury cohortChronic kidney disease progressionAcute kidney injury phenotypesNephrology follow-upKidney disease progressionHealthcare expendituresEarly risk factorsIschemic heart diseasePrevention strategiesRecord dataCost-effectiveness analysis of alternative infant and neonatal rotavirus vaccination schedules in Malawi
Wenger C, Asare E, Kwon J, Li X, Mwinjiwa E, Chinkhumba J, Jere K, Hungerford D, Cunliffe N, Paltiel A, Pitzer V. Cost-effectiveness analysis of alternative infant and neonatal rotavirus vaccination schedules in Malawi. PLOS Global Public Health 2025, 5: e0004341. PMID: 40209158, PMCID: PMC11984971, DOI: 10.1371/journal.pgph.0004341.Peer-Reviewed Original ResearchDose of RotarixNeonatal vaccinationThird doseDisability-adjusted life yearsRotavirus vaccination strategiesVaccination strategiesVaccination scheduleRV3-BB vaccineRotavirus vaccine scheduleModerate-to-severeCurrent rotavirus vaccinesProbabilistic sensitivity analysesRV3-BBPrevent rotavirusRotavirus casesRotavirus vaccineWTP thresholdAlternate infantsVaccine impactSevere diarrheaWeeks of ageRotarixVaccine effectivenessCost-effectiveness analysisCost-effectiveGlobal estimates of rotavirus vaccine efficacy and effectiveness: a rapid review and meta-regression analysis
Prunas O, Asare E, Sajewski E, Li Y, Pithawala Z, Weinberger D, Warren J, Armah G, Cunliffe N, Iturriza-Gómara M, Lopman B, Pitzer V. Global estimates of rotavirus vaccine efficacy and effectiveness: a rapid review and meta-regression analysis. EClinicalMedicine 2025, 81: 103122. PMID: 40115174, PMCID: PMC11925534, DOI: 10.1016/j.eclinm.2025.103122.Peer-Reviewed Original ResearchRotavirus-associated gastroenteritisRotavirus vaccine efficacyPredicting vaccine efficacyVaccine efficacyVaccine effectivenessVaccine performanceNational rotavirus immunization programImpact of rotavirus vaccinationRotavirus immunization programAffecting young childrenBill &Meta-regression analysisRandomized Controlled TrialsSystematic review of studiesEstimates of vaccine effectivenessRotavirus morbidityMelinda Gates FoundationRotavirus vaccineCohort studyLicensed vaccinesVaccine trialsDecreased efficacyControlled TrialsCase-controlLow-income settingsLong-term drought and risk of infant mortality in Africa: A cross-sectional study
Wang P, Rogne T, Warren J, Asare E, Akum R, Toure N, Ross J, Chen K. Long-term drought and risk of infant mortality in Africa: A cross-sectional study. PLOS Medicine 2025, 22: e1004516. PMID: 39888958, PMCID: PMC11785314, DOI: 10.1371/journal.pmed.1004516.Peer-Reviewed Original ResearchConceptsRisk of infant mortalityInfant mortality riskCross-sectional studyInfant mortalityMortality riskIncreased risk of infant mortalityIncreased risk of neonatal mortalityIncreased riskRisk of neonatal mortalityHealth Surveys ProgramPost-neonatal mortalityCox regression modelsStatistically significant associationChild healthGlobal burdenNon-casesNeonatal mortalitySignificant associationImpact mortalityNon-exposureSurvival periodRegression modelsPregnancyMortalityHealth
2024
Impact of dosing schedules on performance of rotavirus vaccines in Ghana
Asare E, Al-Mamun M, Armah G, Lopman B, Pitzer V. Impact of dosing schedules on performance of rotavirus vaccines in Ghana. Science Advances 2024, 10: eadn4176. PMID: 39661683, PMCID: PMC11633732, DOI: 10.1126/sciadv.adn4176.Peer-Reviewed Original ResearchConceptsVaccine dosing schedulesDosing scheduleDoses of RV1Median percentage reductionImprove vaccine performanceRotavirus vaccine impactThird doseRotavirus vaccineRotarix vaccineVaccine impactAdditional doseVaccine effectivenessVaccine performanceVaccineRotavirusRV1Percentage reductionChildrenRotarixImpact of rotavirus vaccination in Malawi from 2012 to 2022 compared to model predictions
Pitzer V, Ndeketa L, Asare E, Hungerford D, Lopman B, Jere K, Cunliffe N. Impact of rotavirus vaccination in Malawi from 2012 to 2022 compared to model predictions. Npj Vaccines 2024, 9: 227. PMID: 39562592, PMCID: PMC11576906, DOI: 10.1038/s41541-024-01008-6.Peer-Reviewed Original ResearchRotavirus-associated gastroenteritisRotavirus-negative childrenRotavirus-negative controlsImpact of rotavirus vaccinationVaccination coverageRotavirus vaccine impactAcute gastroenteritis casesNational immunization programPre-vaccination dataVaccine introductionRotavirus vaccineVaccine impactAcute gastroenteritisVaccine effectivenessGastroenteritis casesLow-income settingsImmunization programsVaccine
2023
Floods and Diarrhea Risk in Young Children in Low- and Middle-Income Countries
Wang P, Asare E, Pitzer V, Dubrow R, Chen K. Floods and Diarrhea Risk in Young Children in Low- and Middle-Income Countries. JAMA Pediatrics 2023, 177: 1206-1214. PMID: 37782513, PMCID: PMC10546297, DOI: 10.1001/jamapediatrics.2023.3964.Peer-Reviewed Original ResearchConceptsMiddle-income countriesDiarrhea riskOdds ratioMAIN OUTCOMEMixed-effects logistic regression modelRisk of diarrheaCross-sectional studyHigher odds ratioPrevalence of diarrheaLogistic regression modelsHealth survey programUnexposed childrenEffect modificationChild healthDiarrhea prevalenceSurvey clustersSignificant associationHygiene practicesFourth weekWeeksStrong associationRandom interceptYoung childrenChildrenDiarrheaClimate Drivers of Malaria Transmission Seasonality and Their Relative Importance in Sub‐Saharan Africa
Yamba E, Fink A, Badu K, Asare E, Tompkins A, Amekudzi L. Climate Drivers of Malaria Transmission Seasonality and Their Relative Importance in Sub‐Saharan Africa. GeoHealth 2023, 7: e2022gh000698. PMID: 36743738, PMCID: PMC9884660, DOI: 10.1029/2022gh000698.Peer-Reviewed Original Research