The Zika virus - linked to births of babies with smaller-than-usual brains in Brazil - is likely to spread to all countries in the Americas except for Canada and Chile, the World Health Organization has said.
Margaret Chan, the WHO director-general, told the organisation's executive board on Monday that she had asked Carissa Etienne, head of the WHO in the Americas, to brief the board later this week on the WHO's response to the outbreak.
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