2025
Cost-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 settings
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
Predicting indirect effects of rotavirus vaccination programs on rotavirus mortality among children in 112 countries
Kraay A, Chaney D, Deshpande A, Pitzer V, Lopman B. Predicting indirect effects of rotavirus vaccination programs on rotavirus mortality among children in 112 countries. Npj Vaccines 2023, 8: 32. PMID: 36871093, PMCID: PMC9985632, DOI: 10.1038/s41541-023-00632-y.Peer-Reviewed Original ResearchRotavirus vaccinationVaccine coveragePost-vaccine introductionHigh vaccine coverageRotavirus vaccination programLow vaccine coverageBirth rateWHO European RegionRotavirus deathsRotavirus mortalityRotavirus vaccineMiddle-income countriesVaccine impactDiarrhea deathsVaccination programIndirect protectionVaccinationEffect estimatesMortalityWestern Pacific RegionRegression analysisDirect protectionIncome countriesDeathHigh birth rate
2012
Understanding Reduced Rotavirus Vaccine Efficacy in Low Socio-Economic Settings
Lopman BA, Pitzer VE, Sarkar R, Gladstone B, Patel M, Glasser J, Gambhir M, Atchison C, Grenfell BT, Edmunds WJ, Kang G, Parashar UD. Understanding Reduced Rotavirus Vaccine Efficacy in Low Socio-Economic Settings. PLOS ONE 2012, 7: e41720. PMID: 22879893, PMCID: PMC3412858, DOI: 10.1371/journal.pone.0041720.Peer-Reviewed Original ResearchConceptsLow socio-economic settingRotavirus vaccine efficacyVaccine efficacyRotavirus vaccineSevere diseaseNatural infectionImmunogenicity of vaccinationReduced vaccine efficacySevere rotavirus gastroenteritisReduced efficacyClinical trial resultsLow SES populationsRotavirus gastroenteritisVaccine performanceVaccination programImmune responseEpidemiological factorsVaccineVaccinationTrial resultsInfectionSES populationsEfficacyReduced protectionEfficacy declines
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