Featured Publications
Evidence of leaky protection following COVID-19 vaccination and SARS-CoV-2 infection in an incarcerated population
Lind M, Dorion M, Houde A, Lansing M, Lapidus S, Thomas R, Yildirim I, Omer S, Schulz W, Andrews J, Hitchings M, Kennedy B, Richeson R, Cummings D, Ko A. Evidence of leaky protection following COVID-19 vaccination and SARS-CoV-2 infection in an incarcerated population. Nature Communications 2023, 14: 5055. PMID: 37598213, PMCID: PMC10439918, DOI: 10.1038/s41467-023-40750-8.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionPrior infectionHybrid immunityInfection riskCOVID-19 vaccinationNon-pharmaceutical interventionsInfected residentsVaccinationInfectionDocumented exposureDelta periodCell exposureIncarcerated populationsExposureImmunityRiskAssociationPotential benefitsCorrectional facilitiesCrowded settingsResidentsPeriodRelationship between the use of nonpharmaceutical interventions and COVID-19 vaccination among U.S. child care providers: A prospective cohort study
Patel KM, Shafiq M, Malik AA, Cobanoglu A, Klotz M, Eric Humphries J, Lee A, Murray T, Wilkinson D, Yildirim I, Elharake JA, Diaz R, Rojas R, Kuperwajs Cohen A, Omer SB, Gilliam WS. Relationship between the use of nonpharmaceutical interventions and COVID-19 vaccination among U.S. child care providers: A prospective cohort study. Vaccine 2022, 40: 4098-4104. PMID: 35660329, PMCID: PMC9135692, DOI: 10.1016/j.vaccine.2022.05.064.Peer-Reviewed Original ResearchConceptsCOVID-19 vaccinationProspective cohort studyCare providersNonpharmaceutical interventionsChild care providersCohort studyLikelihood of vaccinationPreventative health behaviorsVaccinationHealth behaviorsCare programMandatory vaccinationSignificant associationVaccine mandatesDistrict of ColumbiaLarge healthInterventionPandemic controlCOVID-19Child care programsProvidersEmail surveyNonadherenceMeasuresFactors influencing the decision to receive seasonal influenza vaccination among US corporate non-healthcare workers
Aguolu OG, Willebrand K, Elharake JA, Qureshi HM, Kiti MC, Liu CY, Mesa A, Nelson K, Jenness S, Melegaro A, Ahmed F, Yildirim I, Malik FA, Lopman B, Omer SB. Factors influencing the decision to receive seasonal influenza vaccination among US corporate non-healthcare workers. Human Vaccines & Immunotherapeutics 2022, 18: 2122379. PMID: 36136345, PMCID: PMC9746537, DOI: 10.1080/21645515.2022.2122379.Peer-Reviewed Original ResearchConceptsInfluenza vaccinationNon-healthcare workersInfluenza vaccinePromotion messagesWorkplace vaccination programsSeasonal influenza vaccinationInfluenza vaccine acceptancePublic health authoritiesLogistic regression modelsInfluenza seasonPhysician recommendationVaccination acceptanceVaccine accessibilityVaccine acceptanceSevere outcomesVaccination programPromotion interventionsUS adultsWork absenceVaccinationVaccination decisionsHealth authoritiesSignificant mortalityUnderstanding predictorsSignificant predictors
2022
The balancing role of distribution speed against varying efficacy levels of COVID-19 vaccines under variants
Kim D, Keskinocak P, Pekgün P, Yildirim İ. The balancing role of distribution speed against varying efficacy levels of COVID-19 vaccines under variants. Scientific Reports 2022, 12: 7493. PMID: 35523832, PMCID: PMC9075929, DOI: 10.1038/s41598-022-11060-8.Peer-Reviewed Original ResearchConceptsOverall public health impactInfection attack rateCOVID-19 vaccineSARS-CoV-2Public health impactVaccine effectivenessAdverse outcomesMultiple vaccinesInitial efficacySuccessful immunization strategyImmunization strategiesVaccineLow-income countriesAttack rateEfficacyCOVID-19COVID-19 pandemicHealth impactsInfection spreadRecovered-deceased [SI(Q/F)RD] modelEfficacy levelsPandemicHospitalizationVaccinationVariants
2021
Significance of SARS-CoV-2 specific antibody testing during COVID-19 vaccine allocation
Fujimoto AB, Keskinocak P, Yildirim I. Significance of SARS-CoV-2 specific antibody testing during COVID-19 vaccine allocation. Vaccine 2021, 39: 5055-5063. PMID: 34274126, PMCID: PMC8233959, DOI: 10.1016/j.vaccine.2021.06.067.Peer-Reviewed Original ResearchConceptsInfection attack rateAntibody testingSARS-CoV-2-specific antibodiesSpecific antibody testingAttack rateCOVID-19 vaccineSingle-dose vaccineCOVID-19 vaccine allocationDose vaccineSerology testingLimited vaccinesEligible individualsVaccine deploymentVaccination planVaccine supplySusceptible individualsNumber of casesRecovered (SIR) compartmental modelPeak dayUse of antibodiesVaccine allocationVaccinePeak infectionVaccinationSpecific antibodies
2019
Effect of Concomitant Antibiotic and Vaccine Administration on Serologic Responses to Rotavirus Vaccine
Anderson EJ, Lopman B, Yi J, Libster R, Creech CB, El-Khorazaty J, Baqar S, Yildirim I, Kao C, Rouphael N, Shane AL, Edwards K. Effect of Concomitant Antibiotic and Vaccine Administration on Serologic Responses to Rotavirus Vaccine. Journal Of The Pediatric Infectious Diseases Society 2019, 9: 479-482. PMID: 31237948, PMCID: PMC7495907, DOI: 10.1093/jpids/piz044.Peer-Reviewed Original Research
2008
Differences in hepatitis A seroprevalence among geographical regions in Turkey: a need for regional vaccination recommendations
Ceyhan M, Yildirim I, Kurt N, Uysal G, Dikici B, Ecevit C, Aydogan A, Koc A, Yasa O, Köseoğlu M, Onal K, Hacimustafaoglu M, Celebi S. Differences in hepatitis A seroprevalence among geographical regions in Turkey: a need for regional vaccination recommendations. Journal Of Viral Hepatitis 2008, 15: 69-72. PMID: 18837839, DOI: 10.1111/j.1365-2893.2008.01034.x.Peer-Reviewed Original ResearchConceptsRecommendation of vaccinationAnti-HAV antibodiesVaccine-preventable infectionsImmunoglobulin G antibodiesYears of ageLow endemicity regionsEnzyme-linked immunosorbentWorld Health OrganizationUniversal hepatitisIntermediate endemicityVaccination recommendationsHepatitis AOverall prevalenceVaccination policyMedical CenterMass vaccinationImmunization policyAge groupsVaccinationHealth OrganizationSocioeconomic differencesHepatitisEndemicityHygiene conditionsAge