A graduate student works on analyzing samples to identify the Zika virus in a laboratory at the Fiocruz institute in Rio de Janeiro, Brazil, Friday, Jan. 22, 2016.
A graduate student works on analyzing samples to identify the Zika virus in a laboratory at the Fiocruz institute in Rio de Janeiro, Brazil, Friday, Jan. 22, 2016. Leo Correa AP
A graduate student works on analyzing samples to identify the Zika virus in a laboratory at the Fiocruz institute in Rio de Janeiro, Brazil, Friday, Jan. 22, 2016. Leo Correa AP

WHO says Zika likely in all but 2 countries in Americas

January 25, 2016 12:44 PM