Update: Ebola Virus Disease Epidemic — West Africa, December 2014

CDC                                                                                                                         Dec. 16, 2014

...There were 4,281 new Ebola cases reported during the 4-week period of November 9–December 6, compared with the 2,705 new cases reported during the 3-week period of October 19–November 8.. Cases were widely distributed geographically among districts in all three countries, with the prefecture of Mamou in Guinea reported to be newly affected.

During both periods, counts of reported Ebola cases were highest in the area around Monrovia, including Grand Cape Mount, Liberia; the Western Area and northwest districts of Sierra Leone, particularly Bombali and Port Loko; and Conakry, Guinea .

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http://www.cdc.gov/mmwr/preview/mmwrhtml/mm63e1216a1.htm?s_cid=mm63e1216a1_x