Zika virus embryopathy in Argentina: clinical characteristics in newborns
DOI:
https://doi.org/10.31053/1853.0605.v77.n2.26754Keywords:
congenital anomalies, microcephaly, Argentina, Zika virus, serological testsAbstract
Introduction: Microcephaly and brain abnormalities may be due to multiple etiologies, one of them is the congenital infection by Zika virus (ZIKV). From 2016 to the present, there has been a series of ZIKV outbreaks in Argentina. Method: National Network of Congenital Anomalies (RENAC) and the National Institute of Viral Diseases (INEVH), under the National Administration of Laboratories and Health Institutes “Carlos Malbrán” (ANLIS), carry out the intensified surveillance of newborns with microcephaly and brain abnormalities. This article presents the clinical characteristics and laboratory testof patients detected with congenital infection by ZIKV between April 2016 to March 2018, Results: 10 cases with embryopathy were detected, six autochthonous and four imported; in two cases, the mothers were asymptomatic during pregnancy; all the cases presented microcephaly and cranial facial disproportion, ventriculomegaly in seven cases and in six cerebral calcifications. The diagnosis of congenital infection by Zika in the newborn was made by antigen-specific Immunoglobulin M (MAC-ELISA) and plaque-reduction neutralization test (PRNT90 ). PCR was negative in all cases. Conclusion: the patients presented clinical features that were consistent with those reported in other countries. The need for serological studies that allow confirmation is emphasized, ruling out cross-reactivity with other Flaviviruses.
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