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[Correspondence] Zika virus infection in French Polynesia

On Feb 1, WHO issued an alert1 on the potential fetal consequences of the Zika virus outbreak after the Brazilian authorities reported an abnormal increase in the number of cases of neonates born with microcephaly.2 Although no causal link could be clearly established, circumstantial evidence was considered worrisome enough for several countries to discourage pregnant women from travelling to Central and South America.3