Specific Detection of Antibodies to Emerging and Established Arboviruses Including Zika Virus
Specific Detection of Antibodies to Emerging and Established Arboviruses Including Zika Virus
批准号:
9347926
负责人:
DAVID CAMERINI
金额:
$22.5万
依托单位国家:
美国
项目类别:
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-02-06 至 2019-01-31
关键词:
AdultAlgorithmsAmericasAntibodiesArbovirusesAreaBiological AssayBurkholderia pseudomalleiChikungunya virusClinicalCountryCross ReactionsCulicidaeDengue VirusDetectionDevelopmentDiagnosticDiseaseEmergency SituationEpidemicEpitopesFloridaFutureGenomeGeographic stateGoalsGuillain-Barré SyndromeHawaiiHealthIncidenceIndigenousIndividualInfectionInternationalMelioidosisMethodsMexicoMicrocephalyNeurologicNeutralization TestsPathogenicityPatternPhaseProtein FragmentProtein MicrochipsProteinsProteomeProteomicsPublic HealthPuerto RicoReportingSalivaSerotypingSerumSpecificityTechnologyTestingUniversitiesVaccinesValidationViral ProteinsVirusVirus DiseasesWashingtonWest Nile viral infectionWest Nile virusWorkWorld Health OrganizationYellow fever virusZika Virusbasecombatcross reactivityin uteroinnovationmembernovel strategiespoint of carepublic health emergencyresponsesample collectionseropositivespecific biomarkerstherapeutic developmenttherapeutic vaccinetooltransmission process
中文摘要
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英文摘要
Abstract
Zika virus (ZIKV) infection is currently an epidemic in the western hemisphere. It is a WHO-declared
“Public Health Emergency of International Concern” since February 2016 due to the association of ZIKV
infection with microcephaly and other neurologic abnormalities in babies infected in utero and with
Guillain-Barre syndrome in infected adults. An estimated four million ZIKV infections have occurred in
the Americas in 2016 and over two billion people live in areas conducive to mosquito-borne
transmission of ZIKV worldwide. To date, autochthonous ZIKV infection has been reported in over 40
countries in the western hemisphere including the US protectorate, Puerto Rico, and state of Florida.
There is a clear need for accurate and practical methods of detecting ZIKV infection as well as for the
development of therapeutic agents and vaccines to combat the associated disease. Detection of ZIKV
infection is hampered, however, by the cross-reactivity of anti-ZIKV antibodies with other arboviruses
present in the same areas including DENV and CHIKV and visa-versa. Specifically, neutralization-
based serodiagnostic tests (notably plaque-reduction neutralization tests, PRNT) cannot cleanly
distinguish between seropositivity to different members of this set of arboviruses, perhaps because
antibodies directed at neutralizing epitopes tend to be cross-reactive. In this application we propose
an innovative and comprehensive method for discovering targets of non-cross-reactive
antibodies to emerging and established arboviruses and propose to begin with ZIKV due to the
international public health emergency created by this virus.
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