Study shows association between Zika virus and Guillain-Barré syndrome

Zika virus has been known since 1947, but it was only with its spread to the Americas that it was declared a public health emergency of international concern by the World Health Organization (WHO)1. As Zika virus spread throughout South and Latin America, cases of babies born with microcephaly, where the head is smaller than normal, dramatically increased. Cases of Guillain-Barré syndrome increased as well2.

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