I think this source and the one above it may be inaccurate sources (neither is based in Uganda, and both contradict Dr. Malinga in post #9). The statement in bold below is impossible to know; there is not sufficient lab facilities in Uganda (nor the time) to exclude all known agents. I think it is a poor paraphrasing of Dr. Okech's quote (from post #1) that Ebola, Marburg, and Lassa, the three most well-known VHF agents, were excluded.
I think both sources are quoting the source at (http://www.globalpost.com/dispatch/a...disease-uganda).
New hemorrhagic disease emerges in Africa
According to Emmanuel Okech, an official from the Abim District Health Office, test results are in, and the mystery illness is NOT caused by any known agent. Samples have been flown to the CDC in Atlanta. — PID
KAMPALA, Uganda (GLOBAL POST) — Thirteen people have died in northeastern Uganda from a mysterious disease.
The World Health Organization and the Centers for Disease Control are investigating the outbreak of the disease that appears to be similar to the Ebola and Marburg hemorrhagic viruses.
via Ebola virus