World Health Organisation, has predict that Zika virus will spread to about 2 countries in the Americas.

The World Health Organization anticipates that the Zika virus will spread to all but two countries in South, Central and North America. According to CNN, The mosquito-borne disease has raged in South America and other regions for several months. Twenty-one countries and territories of the
Americas have reported cases of the virus since Brazil reported the first cases of local transmission in May 2015, WHO's regional office for the Americas said in a statement."Aedes mosquitoes -- the main vector for Zika transmission -- are present in all the region's countries except Canada and continental Chile," the statement said.The Centers for Disease Control and Prevention urged pregnant women to postpone travel to Bolivia, Brazil, Cape Verde, Colombia, Ecuador, El Salvador, French Guiana, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Saint Martin, Suriname, Samoa, Venezuela and Puerto Rico. The CDC also recommended that women who have recently traveled to these places during their pregnancybe screened and monitored for the virus.

That's because the virus has been linked to an uptick in babies born with a neurological condition called microcephaly, which can cause abnormally small heads and serious, sometimes deadly, developmental delays.

The WHO attributed the virus' rapid spread to the fact that people in the Americas lack immunity because they haven't been exposed to it before.