2024
5-year vaccine protection following a single dose of Vi-tetanus toxoid conjugate vaccine in Bangladeshi children (TyVOID): a cluster randomised trial
Qadri F, Khanam F, Zhang Y, Biswas P, Voysey M, Mujadidi Y, Kelly S, Bhuiyan A, Rajib N, Hossen I, Rahman N, Islam S, Pitzer V, Kim Y, Clemens J, Pollard A, Liu X. 5-year vaccine protection following a single dose of Vi-tetanus toxoid conjugate vaccine in Bangladeshi children (TyVOID): a cluster randomised trial. The Lancet 2024, 404: 1419-1429. PMID: 39396349, DOI: 10.1016/s0140-6736(24)01494-6.Peer-Reviewed Original ResearchConceptsTyphoid conjugate vaccineJapanese encephalitis vaccineVaccine effectivenessRandomised controlled trialsConjugate vaccineFollow-upTyphoid feverControlled trialsVaccine protectionChildren aged 9 monthsIncreased risk of typhoid feverAnti-Vi IgGRisk of typhoid feverVaccine efficacy dataTest-negative designAged 9 monthsUnvaccinated individualsHigh-burden countriesIncidence rate ratiosAnalyses of vaccine effectivenessSingle-doseSingle doseDecay of antibodiesSubgroup analysisBooster dose
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 childrenChildrenDiarrheaYear-Round Respiratory Syncytial Virus Transmission in The Netherlands Following the COVID-19 Pandemic: A Prospective Nationwide Observational and Modeling Study
Löwensteyn Y, Zheng Z, Rave N, Bannier M, Billard M, Casalegno J, Pitzer V, Wildenbeest J, Weinberger D, Bont L, Putten M, Smit-Kleinlugtenbeld E, Peetsold M, van der Kuip M, van Goudoever H, van Keulen B, Boot A, Kloos R, van Gool S, Snepvangers Y, Kuijpers A, Menelik N, de Crom S, Miedema C, Tusscher G, van Giessen J, de Moor R, Faber M, Breukels M, Jaddoe V, Duijts L, Lutterman C, Vink I, Tramper-Stranders G, Oudshoorn A, Ritman A, Dubbink-Verheij G, Bolt J, Cakir C, Rietveld E, Bekhof J, Rings E, de Swart J, Driessen G, Doedens R, Nijssen L, van Onzenoort-Bokken L, Meijneke R, van Scherpenzeel M, Faber T, de Groof F, Schouten S, van de Zande J, de Coul M, Henriet S, Stol K, van Rossem M, Jacobs M, van Houten M, Zuurbier R, Plötz F, de Vries A, van der Heide R, van Boekholt A, de Jong G, Rashid A, Roelofs M, Illy K, Reijmerink N, van Dorth S, Schipper S, Rosias P, Teirlinck A. Year-Round Respiratory Syncytial Virus Transmission in The Netherlands Following the COVID-19 Pandemic: A Prospective Nationwide Observational and Modeling Study. The Journal Of Infectious Diseases 2023, 228: 1394-1399. PMID: 37477906, PMCID: PMC10640768, DOI: 10.1093/infdis/jiad282.Peer-Reviewed Original Research
2020
Meeting Report: WHO Workshop on modelling global mortality and aetiology estimates of enteric pathogens in children under five. Cape Town, 28–29th November 2018
Prudden H, Hasso-Agopsowicz M, Black R, Troeger C, Reiner R, Breiman R, Jit M, Kang G, Lamberti L, Lanata C, Lopman B, Ndifon W, Pitzer V, Platts-Mills J, Riddle M, Smith P, Hutubessy R, Giersing B. Meeting Report: WHO Workshop on modelling global mortality and aetiology estimates of enteric pathogens in children under five. Cape Town, 28–29th November 2018. Vaccine 2020, 38: 4792-4800. PMID: 32253097, PMCID: PMC7306158, DOI: 10.1016/j.vaccine.2020.01.054.Peer-Reviewed Original ResearchConceptsNumber of deathsWorld Health OrganizationEnteric diseaseEnteric pathogensVaccine Advisory CommitteeDifferent enteric pathogensDisease burden estimatesJohns Hopkins Bloomberg SchoolVaccine introduction decisionsVaccine product developmentMiddle-income countriesMortality estimatesVaccine prioritizationBurden estimatesGlobal burdenGlobal mortalityDisease estimatesBloomberg SchoolWorking GroupMajor causeHealth OrganizationHealth metricsIndependent working groupEstimation groupDeath
2014
Predicting the Impact of Vaccination on the Transmission Dynamics of Typhoid in South Asia: A Mathematical Modeling Study
Pitzer VE, Bowles CC, Baker S, Kang G, Balaji V, Farrar JJ, Grenfell BT. Predicting the Impact of Vaccination on the Transmission Dynamics of Typhoid in South Asia: A Mathematical Modeling Study. PLOS Neglected Tropical Diseases 2014, 8: e2642. PMID: 24416466, PMCID: PMC3886927, DOI: 10.1371/journal.pntd.0002642.Peer-Reviewed Original ResearchConceptsChristian Medical College HospitalSubstantial indirect protectionMedical College HospitalCulture-confirmed casesImpact of vaccinationIncidence of typhoidTransmission dynamicsOne-time campaignChronic carriersCollege HospitalVaccination strategiesEndemic settingsTyphoid feverVaccinationTyphoid infectionTyphoid casesNatural historyIndirect protectionVi polysaccharideBasic reproductive numberTyphoidIncidenceTyphoid incidenceAge distributionReproductive number
2009
Demographic Variability, Vaccination, and the Spatiotemporal Dynamics of Rotavirus Epidemics
Pitzer VE, Viboud C, Simonsen L, Steiner C, Panozzo CA, Alonso WJ, Miller MA, Glass RI, Glasser JW, Parashar UD, Grenfell BT. Demographic Variability, Vaccination, and the Spatiotemporal Dynamics of Rotavirus Epidemics. Science 2009, 325: 290-294. PMID: 19608910, PMCID: PMC3010406, DOI: 10.1126/science.1172330.Peer-Reviewed Original Research