Congo's Ebola outbreak has killed more than 3,000 people out of over 6,100 confirmed cases, the latest government data showed Wednesday, as the disease is spreading at an unprecedented speed, faster than efforts to track and slow it.

Data from Congo's Ministry of Health showed the outbreak has recorded 6,186 confirmed cases, including 3,007 deaths since it was declared in mid-May.

It remains the fastest-growing outbreak of Ebola ever.