Don't go to Rio Olympics if you are pregnant: Expectant mothers warned not to travel to Brazil as mosquito-borne Zika virus rips through country 'causing babies to be born with unusually small heads'

Don't go to Rio Olympics if you are pregnant: Expectant mothers warned not to travel to Brazil as mosquito-borne Zika virus rips through country 'causing babies to be born with unusually small heads' The US-based Centers for Disease Control and Prevention has advised against travel to Brazil and 13 other countries in Latin America and the Caribbean as virus continues to spread.