Travel warnings grow over Zika virus The Zika virus, which may be linked to brain damage in thousands of babies, is prompting governments to issue travel warnings to pregnant women for countries where the tropical fever has been detected Locally transmitted cases of Zika virus reported in last two months Mexico Ecuador Cape Verde Brazil Bolivia Paraguay Thailand Limit of range of Aedes aegpyti mosquito Samoa Guatemala El Salvador Honduras Panama Haiti Colombia Dominican Republic Puerto Rico U.S. Virgin Islands Venezuela Saint Martin (FR) Guadeloupe (FR) Martinique (FR) Barbados Guyana Suriname French Guiana 500km 300 miles Zika spread: Primarily through bite of infected Aedes aegypti mosquito. Virus may also pass from mother to foetus during pregnancy. Link between Zika and babies born with underdeveloped brains,or microcephaly, is still being investigated Sources: CDC, ECDC, WHO Picture: Associated Press