2025
Zika in Infants and Pregnancy (ZIP) study: results from a prospective international cohort study of prenatal Zika virus infection and adverse fetal and infant outcomes
Lebov J, Nason M, Stolka K, Ximenes R, Mussi-Pinhata M, Moye J, Zorrilla C, Velez Vega C, Cordero J, Scalabrin D, Ko A, Moreira M, Galvão L, Britt W, Marques E, Balmaseda A, Harris E, Arias J, Schultz-Cherry S, Garces A, Krebs N, Ochoa T, Ugarte-Gil C, Fogleman E, Gabriel E, Welton M, Irizarry C, de Moura Negrini S, Coutinho C, de Barros Miranda-Filho D, Montarroyos U, Cordeiro M, Gajewski A, Osorio J, Figueroa L. Zika in Infants and Pregnancy (ZIP) study: results from a prospective international cohort study of prenatal Zika virus infection and adverse fetal and infant outcomes. BMC Pregnancy And Childbirth 2025, 25: 903. PMID: 40885911, PMCID: PMC12399002, DOI: 10.1186/s12884-025-07774-y.Peer-Reviewed Original ResearchConceptsZika virus infectionZIKV exposureCongenital malformationsRelative riskInfant outcomesZika virusComposite endpointPrenatal Zika virus infectionPrimary analysisZika virus exposureSecondary analysisCo-primary analysisWeeks gestationPrimary endpointRNA testingProspective studyProspective cohortPregnant participantsWeeks postpartumPregnancyVirus infectionInfantsAdequate sample sizeInfant deathsPregnant people
2021
Effectiveness of ChAdOx1 vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo
Hitchings MDT, Ranzani OT, Dorion M, D’Agostini T, de Paula RC, de Paula OFP, de Moura Villela EF, Torres MSS, de Oliveira SB, Schulz W, Almiron M, Said R, de Oliveira RD, Silva PV, de Araújo WN, Gorinchteyn JC, Andrews JR, Cummings DAT, Ko AI, Croda J. Effectiveness of ChAdOx1 vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo. Nature Communications 2021, 12: 6220. PMID: 34711813, PMCID: PMC8553924, DOI: 10.1038/s41467-021-26459-6.Peer-Reviewed Original ResearchConceptsSingle doseOxford-AstraZeneca COVID-19 vaccineTest-negative case-control studySevere COVID-19 outcomesCOVID-19COVID-19-related deathsTwo-dose scheduleTwo-dose regimenCase-control studyCOVID-19 outcomesInter-dose intervalCOVID-19 hospitalizationCOVID-19 vaccineSARS-CoV-2ChAdOx1 vaccinePrimary endpointSecondary endpointsFirst doseSecond doseHigh prevalenceElderly individualsElderly populationVariant prevalenceVaccine supplyHospitalization
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