(CNN) There have been 78 cases of Ebola reported in the current outbreak in North Kivu and Ituri provinces of the Democratic Republic of Congo as of Wednesday, the World Health Organization said Friday.

Of those cases, 51 are confirmed, and 27 are probable. This includes 44 deaths.

The reported cases are in five health zones in North Kivu and one health zone in Ituri, but all of the cases are linked to the "outbreak epi-center" in Mangina, the agency said.

In addition, 10 health care workers have become infected with the disease. Nine of those cases are confirmed, and the one probable case is a worker who died.

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