Ban Ki-moon has launched another urgent appeal for funds to help fight Ebola after a United Nations drive for donations fell short of its target, reports GHN based on BBC.
The UN chief said a $1bn trust fund he launched in September has received just $100,000 (£62,000) so far.
He joins a growing chorus of world leaders criticising the global effort to tackle the Ebola outbreak.
The disease has killed about 4,500 people so far, mostly in Liberia, Guinea and Sierra Leone.
Donors have given almost $400m (£250m) to other UN agencies and aid organisations directly but the UN trust fund, intended to act as a flexible spending reserve, has itself only received pledges of just $20m (£12m).
Of those countries that have pledged money to the trust fund, only Colombia has paid, giving $100,000 (£62,000).
The UN special envoy on Ebola, David Nabarro, said the fund was intended to offer "flexibility in responding to a crisis which every day brings new challenges".
"It allows the areas of greatest need to be identified and funds to be directed accordingly," he added.