Infant neurodevelopment and behavior in Guadeloupe after lead exposure and Zika maternal infection during pregnancy

•Knowledge on interaction between neurotoxic viruses and chemicals is scarse.•Guadeloupean pregnant women have been exposed to ZIKA virus and lead pollution.•Child neurodevelopmental and behavioral outcomes were assessed at 18 months.•Both Zika virus and lead affect fine motor domain, no interaction is evidenced.•Sex-specific neurodevelopment effects of low prenatal lead exposure are suggested.