Ariana Eunjung Cha Brian Murphy The Washington Post

The World Health Organization on Monday designated the Zika virus a public health emergency of international concern, an action it has taken only three times before, which paves the way for the mobilization of more funding and manpower to fight the mosquito-born pathogen spreading "explosively" through the Americas.

The World Health Organization on Monday designated the Zika virus a public health emergency of international concern, an action it has taken only three times before, which paves the way for the mobilization of more funding and manpower to fight the mosquito-born pathogen spreading "explosively" through the Americas.