A researcher at the Fiocruz Institute places an Aedes aegypti mosquito on a petri dish before analyzing it through the microscope at the Fiocruz Institute in Recife, Pernambuco state, Brazil, Wednesday, January 27, 2016. The mosquito is a vector for the proliferation of the Zika virus currently spreading throughout Latin America. Photo: AP Photo/Felipe Dana / AP
A researcher of the Fiocruz institute places an Aedes aegypti mosquito on a petri dish before analyzing it through the microscope at the Fiocruz institute in Recife, Pernambuco state, Brazil, Wednesday, Jan. 27, 2016. The mosquito is a vector for the proliferation of the Zika virus currently spreading throughout Latin America. Photo: AP Photo/Felipe Dana
 / AP