Emergencies

The history of Zika virus

A chronological map of the presence of Zika only in those countries for which there is evidence of indigenous transmission by mosquitos, excluding the many countries that have notified imported Zika. infections.

The following timeline summarizes the spread of Zika infection, country by country, from the earliest discovery in 1947 to the latest information as of 7 February 2016. Zika virus infection appears to have changed in character while expanding its geographical range.


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The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted and dashed lines on maps represent approximate border lines for which there may not yet be full agreement.

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This page links all WHO information to its response on the Public Health Emergency of International Concern.