2024
Impact 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
2022
Malaria metrics distribution under global warming: assessment of the VECTRI malaria model over Cameroon
Mbouna A, Tamoffo A, Asare E, Lenouo A, Tchawoua C. Malaria metrics distribution under global warming: assessment of the VECTRI malaria model over Cameroon. International Journal Of Biometeorology 2022, 67: 93-105. PMID: 36258135, DOI: 10.1007/s00484-022-02388-x.Peer-Reviewed Original ResearchAssociations between long-term drought and diarrhea among children under five in low- and middle-income countries
Wang P, Asare E, Pitzer VE, Dubrow R, Chen K. Associations between long-term drought and diarrhea among children under five in low- and middle-income countries. Nature Communications 2022, 13: 3661. PMID: 35773263, PMCID: PMC9247069, DOI: 10.1038/s41467-022-31291-7.Peer-Reviewed Original ResearchThe influence of demographic and meteorological factors on temporal patterns of rotavirus infection in Dhaka, Bangladesh
Asare EO, Al-Mamun MA, Sarmin M, Faruque ASG, Ahmed T, Pitzer VE. The influence of demographic and meteorological factors on temporal patterns of rotavirus infection in Dhaka, Bangladesh. Proceedings Of The Royal Society B 2022, 289: 20212727. PMID: 35673869, PMCID: PMC9174722, DOI: 10.1098/rspb.2021.2727.Peer-Reviewed Original ResearchCase fatality risk of diarrhoeal pathogens: a systematic review and meta-analysis
Asare EO, Hergott D, Seiler J, Morgan B, Archer H, Wiyeh AB, Guo B, Driver M, Giersing B, Hasso-Agopsowicz M, Lingappa J, Lopman BA, Pitzer VE. Case fatality risk of diarrhoeal pathogens: a systematic review and meta-analysis. International Journal Of Epidemiology 2022, 51: 1469-1480. PMID: 35578827, PMCID: PMC9557849, DOI: 10.1093/ije/dyac098.Peer-Reviewed Original ResearchConceptsCase fatality riskDiarrhoeal pathogensEnteropathogenic Escherichia coliSystematic reviewMultilevel mixed-effects logistic regression modelsMixed-effects logistic regression modelLower odds ratioOverall case fatality riskRandom-effects modelLogistic regression modelsDiarrhoea mortalityPrimary outcomeFatality riskOdds ratioMortality rateVaccine developmentAge groupsEnteric pathogensPotential predictorsBurden modelMore studiesReview criteriaConsiderable heterogeneityDifferent pathogensCFR estimatesSpatiotemporal Patterns of Diarrhea Incidence in Ghana and the Impact of Meteorological and Socio-Demographic Factors
Asare EO, Warren JL, Pitzer VE. Spatiotemporal Patterns of Diarrhea Incidence in Ghana and the Impact of Meteorological and Socio-Demographic Factors. Frontiers In Epidemiology 2022, 2: 871232. PMID: 35822109, PMCID: PMC9272077, DOI: 10.3389/fepid.2022.871232.Peer-Reviewed Original ResearchSocio-demographic factorsDiarrhea incidenceHealth insurance schemeSignificant public health problemOverall diarrhea incidencePublic health problemGhana Health ServiceHigh-risk districtsConsiderable financial burdenDirection of associationDiarrhea controlDiarrhoea patternsHealth problemsDiarrheaHealth servicesPotential associationSignificant associationDiarrhea dataIncidence
2020
Modeling of rotavirus transmission dynamics and impact of vaccination in Ghana
Asare EO, Al-Mamun MA, Armah GE, Lopman BA, Parashar UD, Binka F, Pitzer VE. Modeling of rotavirus transmission dynamics and impact of vaccination in Ghana. Vaccine 2020, 38: 4820-4828. PMID: 32513513, PMCID: PMC8290434, DOI: 10.1016/j.vaccine.2020.05.057.Peer-Reviewed Original ResearchConceptsVaccine response ratesRotavirus vaccine impactRotavirus incidenceVaccine impactMaternal immunityResponse rateVaccine effectivenessLow-income countriesTeaching hospitalHigh-income countriesKorle-Bu Teaching HospitalKomfo Anokye Teaching HospitalMonovalent rotavirus vaccineRotavirus transmission dynamicsLow vaccine effectivenessProportion of infantsImpact of vaccinationWar Memorial HospitalAge distributionRotavirus casesRotavirus vaccineVaccine introductionVaccine performanceMemorial HospitalRotavirus seasonality
2019
Modelled and observed mean and seasonal relationships between climate, population density and malaria indicators in Cameroon
Mbouna A, Tompkins A, Lenouo A, Asare E, Yamba E, Tchawoua C. Modelled and observed mean and seasonal relationships between climate, population density and malaria indicators in Cameroon. Malaria Journal 2019, 18: 359. PMID: 31707994, PMCID: PMC6842545, DOI: 10.1186/s12936-019-2991-8.Peer-Reviewed Original Research
2017
Assessing Climate Driven Malaria Variability in Ghana Using a Regional Scale Dynamical Model
Asare E, Amekudzi L. Assessing Climate Driven Malaria Variability in Ghana Using a Regional Scale Dynamical Model. Climate 2017, 5: 20. DOI: 10.3390/cli5010020.Peer-Reviewed Original ResearchHydrology schemeSpatio-temporal variabilityClimate variabilityRainfall datasetsRainfall peakRegional modelAgro-ecological zonesSynoptic stationsModel resultsTerms of intensityMonthly variationEcological variabilitySeasonal patternUseful skillsVariabilityField surveyMalaria transmissionTime lagZoneMajor public health challengeMalaria transmission patternsPublic health challengeDynamical modelRainfallClimate
2016
Mosquito breeding site water temperature observations and simulations towards improved vector-borne disease models for Africa
Asare E, Tompkins A, Amekudzi L, Ermert V, Redl R. Mosquito breeding site water temperature observations and simulations towards improved vector-borne disease models for Africa. Geospatial Health 2016, 11: 391. PMID: 27063735, DOI: 10.4081/gh.2016.391.Peer-Reviewed Original ResearchA breeding site model for regional, dynamical malaria simulations evaluated using in situ temporary ponds observations
Asare E, Tompkins A, Amekudzi L, Ermert V. A breeding site model for regional, dynamical malaria simulations evaluated using in situ temporary ponds observations. Geospatial Health 2016, 11: 390. PMID: 27063734, DOI: 10.4081/gh.2016.390.Peer-Reviewed Original ResearchA Regional Model for Malaria Vector Developmental Habitats Evaluated Using Explicit, Pond-Resolving Surface Hydrology Simulations
Asare E, Tompkins A, Bomblies A. A Regional Model for Malaria Vector Developmental Habitats Evaluated Using Explicit, Pond-Resolving Surface Hydrology Simulations. PLOS ONE 2016, 11: e0150626. PMID: 27003834, PMCID: PMC4803214, DOI: 10.1371/journal.pone.0150626.Peer-Reviewed Original ResearchConceptsLocal rain gauge dataPond modelSatellite-retrieved precipitationSub-seasonal evolutionDynamical malaria modelRain gauge dataLight rainfall eventsData-sparse regionsGrid cell locationsSurface hydrologyHydrology simulationsIntense rainfallLight rainfallPond fractionRainfall eventsHydrology parametersYear simulationRegional modelSurface runDefault schemeSparse regionsParametrization schemeSoil textureRainfallIndividual ponds
2015
Impact of soil moisture on extreme maximum temperatures in Europe
Whan K, Zscheischler J, Orth R, Shongwe M, Rahimi M, Asare E, Seneviratne S. Impact of soil moisture on extreme maximum temperatures in Europe. Weather And Climate Extremes 2015, 9: 57-67. DOI: 10.1016/j.wace.2015.05.001.Peer-Reviewed Original ResearchStandardized Precipitation IndexSurface moisture conditionsSoil moistureTemperature extremesHot daysReturn valuesLand–atmosphere interactionsHot temperature extremesImportance of evapotranspirationExtreme maximum temperaturesMaximum temperatureSouthern central EuropeMonthly maximum temperatureC increasePrecipitation deficitPrecipitation IndexSM estimatesTemperature observationsPrevious observational studiesSuch extremesExtreme value distributionSM dataSM conditionsTXxSpring conditionsVariabilities in Rainfall Onset, Cessation and Length of Rainy Season for the Various Agro-Ecological Zones of Ghana
Amekudzi L, Yamba E, Preko K, Asare E, Aryee J, Baidu M, Codjoe S. Variabilities in Rainfall Onset, Cessation and Length of Rainy Season for the Various Agro-Ecological Zones of Ghana. Climate 2015, 3: 416-434. DOI: 10.3390/cli3020416.Peer-Reviewed Original ResearchRainfall onsetThird dekadCessation datesFirst dekadRainy seasonRainfall amountSecond dekadCoastal zoneRainy daysTransition zoneClimatic zonesRain-fed agricultural practicesRain gauge dataCumulative rainfall amountInter-annual variabilityGhana Meteorological AgencySavannah zoneWater resources managementForest zoneWavelet power spectrumRainfall characteristicsSocio-economic activitiesGauge dataMeteorological AgencyOnset date