Congenital Zika infection: neurology can occur without microcephaly

The fetal repercussions of Zika virus (ZIKV) infection during pregnancy is of interest for maternal and child health.1 Studies on the psychomotor and neurodevelopment of children exposed in utero to arboviruses, especially non-microcephalic children, are lacking. At a maternity university hospital in Brazil, we started following the development of children, without microcephaly, born to mothers infected with ZIKV during pregnancy, searching for early warning signs of abnormalities. A normal head circumference for term newborns was defined, according to the 2016 WHO recommendation, as higher than 31.9 cm for boys and higher than 31.5 cm for girls.2 We used the Alberta Infant Motor Scale for the evaluation of motor development, and the Denver II test for tracking development in personal/social, fine motor/adaptive, language …