WHO meets to decide whether to declare Zika a global emergency

Independent experts to the World Health Organization began deliberating on Monday whether to declare a global emergency over the Zika virus, which has been linked to thousands of birth defects in Brazil. The United Nations agency said last week the Zika virus was "spreading explosively" and could infect as many as 4 million people in the Americas. Peter Piot, director of the London School of Hygiene and Tropical Medicine and a co-discoverer of the Ebola virus, said the WHO had "dropped