A US doctor with Ebola is improving and new cases have been reported in Morocco and Nigeria, as the outbreak reaches 1,603 cases and 887 deaths.
An emergency committee next week will consider if West Africa's Ebola outbreak is a health emergency as US officials prepare to airlift two sick American aid workers.
The WHO will launch a $100 million plan tomorrow, and the CDC advises against nonessential travel.
The illness continues to exact a heavy toll on healthcare workers and disrupt aid.
With the continuing spread of Ebola virus disease (EVD) in West Africa, the US Centers for Disease Control and Prevention (CDC) yesterday issued an official advisory for US HCWs to consider EVD and possible isolation pending diagnosis in patients who have Ebola-like symptoms and a travel history to affected countries within the previous 21 days.
Two new developments are fanning concerns about the international spread of the disease.
The 45 new cases and 28 deaths raise the outbreak total to 1,093 infections, 660 of them fatal.
Sierra Leone's new cases nudge its total ahead of Guinea's, and Liberia also adds to its illness and death totals.
The new numbers bring history's largest Ebola outbreak to 982 cases and 613 deaths.
The WHO confirms 85 new cases and 68 deaths, and a study shows evidence for the disease in the area in 2006.