STUDY CLOSEOUT FOR THE INTERNATIONAL COHORT STUDY OF CHILDREN BORN TO WOMEN INFECTED WITH ZIKA VIRUS DURING PREGNANCY (ZIP 2.0)
对怀孕期间感染寨卡病毒的妇女所生儿童的国际队列研究即将结束 (ZIP 2.0)
基本信息
- 批准号:10701122
- 负责人:
- 金额:$ 50万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-09-01 至 2024-03-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAge-MonthsAnatomyArbovirusesAuditoryBehavioralBrainBrazilChildCognitiveCohort StudiesCommunicationConflict (Psychology)Congenital AbnormalityDataData AnalysesDevelopmentDevelopmental Delay DisordersEnsureEpidemicEpidemiologyEvaluationExposure toEyeFlaviviridaeFrequenciesGrowth and Development functionHead circumferenceImpact evaluationInfantInfectionInternationalLifeLiteratureLongitudinal StudiesManuscriptsMicrocephalyMothersNational Institute of Child Health and Human DevelopmentNatural HistoryNewborn InfantObservational StudyOutcomeOwnershipPathogenesisPatientsPopulation StudyPregnancyPregnant WomenProtocols documentationRegistriesReportingRiskSiteSpecimenUnited States National Institutes of HealthVirusVisitWomanZIKAZIKV infectionZika Virusadverse pregnancy outcomecongenital zika syndromedata submissionfollow-uphigh riskin uterointrapartummortality riskneurodevelopmentprenatalprenatal exposurevector-borne
项目摘要
Zika virus (ZIKV) is an arbovirus (vector-borne virus) of the genus Flaviviridae. Infections were thought to be mild and self-limiting until 2015, when an epidemic was observed initially in Brazil of microcephaly and other birth defects in newborns following infection of the mother during pregnancy with ZIKV. Increasing evidence now points to ZIKV as the agent responsible for a variety of birth defects in newborns of mothers who become infected during pregnancy. The relationship of ZIKV infections in pregnant women with adverse outcomes of pregnancy is the subject of ongoing evaluation.
Studies to date of infants born to infected women have tended to focus on those born with serious birth defects that constitute the congenital Zika syndrome (CZS), which has been shown in a recent population-based study from Brazil to increase risk of death in the first three years of life more than 11-fold compared to children without CZS1. The U.S. Zika Pregnancy and Infant Registry reports that approximately 5% of infants born to women with ZIKV infection during pregnancy have Zika-associated brain or eye defects2 consistent with CZS.
But whether there are latent effects on growth and development in the 95% of infants who are born without CZS to Zika-infected women, and what those effects may be, remains to be elucidated. Longitudinal studies of infants born to Zika-infected pregnant women are needed to assess the broader spectrum and natural history of a wider range of possible manifestations of intrauterine or intrapartum Zika exposure.
In 2016, NIH initiated a large, multicenter, international observational study of the epidemiology, natural history, and pathogenesis of Zika in infants and pregnancy, the Zika Infections in Pregnancy (ZIP) Study. The ZIP Study followed infants born to women at risk for Zika infection during pregnancy through just the first 12 months of life and completed its last patient last visit December 2019. In 2018, NIH initiated the International Cohort Study of Children Born to Women Infected with Zika Virus During Pregnancy (ZIP 2.0) of Zika exposed children and unexposed control children from the ZIP Study or similar studies, following the children through 42 months of age to evaluate the effects of Zika on child growth and development.
Recent studies have found that infants who had in utero ZIKV exposure without CZS appear to be at risk for abnormal neurodevelopmental outcomes in the first 18 months of life3 and similarly observed high frequencies of anatomical and neurodevelopmental abnormalities in children without microcephaly who were exposed to ZIKV in utero4. One study found a gradient of risk of development delay according to head circumference, with severely microcephalic children at highest risk for delays while normocephalic ZIKV-exposed children showed similar risk to unexposed control children5. However, several other studies have observed abnormal neurodevelopment in the absence of microcephaly among children with intrauterine ZIKV exposure6,7. Those reports indicate that nearly all such children presented at least one developmental delay and that a significant proportion of children exposed in utero to ZIKV developed mild cognitive delay and auditory behavioral abnormalities.
This task order addresses NIH’s requirement to conduct an evaluation of the impact of prenatal Zika exposure among ZIP 2.0 infants and children. Given the variable and sometimes conflicting findings reported to date in the scientific literature, this task order will help to determine whether, to what extent, and what types of longer-term follow-up is indicated.
寨卡病毒(ZIKV)是黄病毒科虫媒病毒(媒介传播的病毒)。在2015年之前,人们一直认为感染是轻微和自限性的,当时在巴西最初观察到母亲在怀孕期间感染寨卡病毒后,出现了新生儿小头畸形和其他出生缺陷的流行。现在越来越多的证据表明,寨卡病毒是导致在怀孕期间感染寨卡病毒的母亲的新生儿出现各种出生缺陷的罪魁祸首。孕妇感染寨卡病毒与妊娠不良结局的关系是正在进行评估的主题。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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BARBARA DRIVER其他文献
BARBARA DRIVER的其他文献
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10710436 - 财政年份:2022
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10369859 - 财政年份:2021
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$ 50万 - 项目类别:
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