Zika virus causes Guillain-Barre Syndrome and microcephaly. Clinical and laboratory diagnosis is complicated. Population-based research can elucidate ZIKV epidemiology, vertical transmission, fetal risks of maternal ZIKV infection and natural history of congenital and non-congenital ZIKV infection provided by the activities in “ZIKAction” research consortium, recently funded by the European Commission.

Newborns with the characteristics of congenital syndrome associated with Zika virus (CSAZ) are being born in urban hospitals after the 2016 Zika virus epidemic in Jamaica. Phenotypic features include microcephaly, craniofacial disproportion, neuro-imaging and neuro-pathological findings and arthrogryposis. A trend towards babies being delivered with small head circumferences, but not yet in the range of microcephaly and others with normal head sizes who were born to women who were symptomatic in pregnancy is also being observed. While, most babies with probable CSAZ are being born to asymptomatic women who did not report any symptoms related to arbovirus illness in pregnancy. Diagnosis is challenged by serological cross-reactivity between circulating flaviviruses. Team management is multidisciplinary to maximize the neuro-developmental potential of this vulnerable patient population.

The Zika virus epidemic in Jamaica is evolving and includes cases of Guillain-Barré Syndrome and reports in pregnant women. Zika may become endemic in Jamaica, similar to dengue and Chikungunya. Safe and effective Dengue, Chikungunya fever and ZIKV vaccines are needed to mitigate the devastating effects of these three diseases.