Tedros stressed though that the decision not to use the label for the epidemic that has killed at least 139 people in DRC's violence-torn North Kivu region since August "does not mean that WHO is not taking the outbreak seriously."
Several business titans and Western media groups have already pulled out of the conference organized by Saudi Arabia's sovereign wealth fund.
Tens of thousands of people demonstrated against corruption Wednesday in Haiti, with some even shoving the unpopular president at a public ceremony.
A rare disease that peaked this autumn and paralyzes its victims - mainly children - in ways similar to polio has put health authorities on alert across the United States.
A perpetually unctuous, self-lubricating latex developed by a team of scientists in Boston could boost the use of condoms, they reported Wednesday in the journal Royal Society Open Science.
At his office along Lumumba avenue in Kampala, Badru Senkuba, a car dealer, speaks with long pauses of someone in deep thought, uncertain what the future holds for a business he has known for much of his working life.