Highlights

• The WHO has changed the source of its data since its last update on November 5, 2014: epidemiological data is now based on information from ministries of health and WHO regional offices.

• This change has led to a downward revision of the number of reported cases.

• In total, 13,015 cases (suspected, probable, and confirmed) and 4,808 deaths have been reported by the WHO in three West African countries (Guinea, Liberia, and Sierra Leone).

• Mali reported a case imported from Guinea on October 24, 2014. No secondary transmission had been reported in the country as of November 5, 2014.