Developmental Outcome After In Utero ZIKV Exposure in Children Without Congenital Zika Syndrome
BACKGROUND: Children exposed to Zika-virus (ZIKV) in utero during the years of 2015-2017 are now in early childhood. Children with severe neurologic injury (congenital Zika syndrome; CZS) have a poor developmental outcome; however the developmental outcome of apparently normal infants following in utero ZIKV-exposure has not been established since these children are only now reaching early childhood.
GAP: We will determine if children exposed to ZIKV in utero who are normal appearing at birth have abnormal neurodevelopment in early childhood and the specific domains and degree to which they are impacted.
HYPOTHESIS: We hypothesize that ZIKV-exposed normal appearing children will have lower multi-domain developmental assessment scores at 3 and 4 years of age compared to non-ZIKV exposed controls.
METHODS: We will perform a prospective neurodevelopmental outcome study of ZIKV-exposed children and of non-exposed controls in the Department of Atlántico, Colombia and at Children’s National, Washington, DC, USA. In the United States and Colombian children, we will perform multi-domain neurodevelopmental assessments at age 3 and 4 years.
IMPACT: The results of this study will inform the development of national and international guidelines for the long-term neurodevelopmental assessment of children exposed to ZIKV-in utero who do not have CZS.
Website Link: https://childrensnational.org/departments/zika-program
The results of this study will be among only a few studies with outcome data past age 2 years and will contribute to the World Health Organization IPD-MA.(Wilder-Smith A, et al. BMJ Open 2019).