The General Assembly adopted a resolution endorsing a proposal from UN Secretary-General Antonio Guterres who is facing a major shortfall in the $400 million needed to help Haiti recover from the epidemic.
Haiti has been in the grips of a raging, years-long cholera epidemic that has claimed some 9,500 lives, after infected UN peacekeepers from Nepal introduced cholera. The peacekeepers were sent to Haiti after the devastating 2010 earthquake.
The UN mission in Haiti known as MINUSTAH will shut down in October, ending a 13-year operation that fell out of favor with Haitians.
Guterres will ask all contributors to the peacekeeping budget to notify him within 60 days whether they will are willing to shift their share of the unspent money to the cholera fund.
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The United States, the biggest financial contributor to UN peacekeeping, last month announced that it will be taking back its share of the unspent budget and will not be making a contribution to the fund.
President Donald Trump's administration is seeking deep cuts to its funding for the United Nations and its peacekeeping missions.
Addressing the assembly, Jamaica's Ambassador Courtenay Rattray said the United Nations must not "turn a blind eye" to Haiti's cholera crisis "which stands starkly as a stain against the good name of the United Nations."
Rattray said the funds from the mission's budget "would be small relative to the amount required" for the USD 400 million trust fund but that "every feasible source of funding can make a difference.
Only seven countries have so far contributed -- Chile, France, India, Liechtenstein, South Korea, Sri Lanka and Britain -- for a total of USD 2.67 million.
Canada and Japan have separately granted USD 8.5 million to help Haiti.