Global emergency declared over Zika virus The World Health Organization has declared the mosquito-borne Zika virus an international public health emergency due to its suspected link to thousands of birth defects in Brazil Mexico Guatemala El Salvador Nicaragua Zika virus outbreak in Americas (2015–present) Honduras Panama Colombia Ecuador Bolivia Aedes aegypti mosquito Paraguay Haiti Dominican Republic Jamaica Puerto Rico U.S. Caribbean: Barbados, Curaçao NL, Guadeloupe FR, Martinique FR, Saint Martin FR Venezuela Guyana Suriname French Guiana Brazil: Almost 4,000 babies born with microcephaly since Oct 2015 Rio de Janeiro Sources: WHO, CDC Picture: AP