From this Associated Press article that we found at Google News, we read more about the report's conclusions.
Epidemiologist Renaud Piarroux, who studied the outbreak for the Haitian and French governments, concluded that there was no doubt that the cholera originated in contaminated water next to a U.N. base outside the town of Mirebalais along a tributary to Haiti's Artibonite river.
"No other hypothesis could be found to explain the outbreak of a cholera epidemic in this village ... not affected by the earthquake earlier this year and located dozens of kilometers from the coast and (quake refugee tent) camps," he wrote in a report that has not yet been publicly released.
The AP obtained a copy from an international official who released it on condition of anonymity. Piarroux declined in an e-mail interview to discuss his findings.
The French Foreign Ministry confirmed that Dr. Renaud Piarroux's report has been completed and sent to officials in Haiti and at the United Nations. France commmissioned the report at Haiti's request.
The report calls for a further investigation of the outbreak and improved medical surveillance and sanitation procedures for U.N. peacekeeping troops.
Many Haitians suspect that the Nepalese troops were the source of the outbreak, and anger at the troops sparked a week of violent riots, but the French scientist's report is the first scientific study linking the base to cholera.