GENEVA (AP) — The death toll from the Ebola crisis will rise to more than 4,500 lives this week from among 9,000 people infected by the deadly disease, a top official with the U.N. health agency said Thursday. Dr. Isabelle Nuttall, director of the World Health Organization's global capacities, alert and response, said new numbers show the outbreak is still hitting health workers hard, with 2,700 infected and 236 dead, mainly because Ebola victims are most contagious around the time they die.