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
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