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[Correspondence] Association between Guillain-Barré syndrome and Zika virus infection

Van-Mai Cao-Lormeau and colleagues1 reported that Guillain-Barré syndrome was associated with Zika virus infection. They recommended that affected countries should ensure adequate intensive care capacity to manage patients with Guillain-Barré syndrome. We argue that these findings are unfounded and probably result from confirmation bias (details and evidence in support of these arguments could be requested from the authors). The authors applied Brighton criteria2 to diagnose Guillain-Barré syndrome.