Obama calls West Africa Ebola outbreak `` a growing threat to regional and global security '' WHO Thursday lockdown revealed more cases of Ebola , government says . `` True picture portrays a situation worse than what was being reflected in reports , '' it says . 6,263 probable , confirmed and suspected cases in West Africa , with 6,263 deaths , Sierra Leone 's says .
Obama calls West Africa Ebola outbreak `` a growing threat to regional and global security '' Sierra Leone 's three-day lockdown revealed more cases of Ebola , government says . `` True picture portrays a situation worse than what was being reflected in reports , '' it says . 6,263 probable , confirmed and suspected cases in West Africa , with 2,917 deaths , WHO says .