Marie-Paule Kieny, Assistant Director-General, Health Systems and Innovation, of World Health Organization, WHO, speaks during a press conference at the European headquarters of the United Nations, in Geneva, Switzerland, on Friday, Feb. 12, 2016.
Marie-Paule Kieny, Assistant Director-General, Health Systems and Innovation, of World Health Organization, WHO, speaks during a press conference at the European headquarters of the United Nations, in Geneva, Switzerland, on Friday, Feb. 12, 2016. Martial Trezzii AP
Marie-Paule Kieny, Assistant Director-General, Health Systems and Innovation, of World Health Organization, WHO, speaks during a press conference at the European headquarters of the United Nations, in Geneva, Switzerland, on Friday, Feb. 12, 2016. Martial Trezzii AP

Possible Zika vaccines months away from broad trials, WHO says

February 12, 2016 08:06 AM