Epidemiologist Renaud Piarroux conducted research in Haiti on behalf of the French and Haitian governments.
The cholera epidemic has killed 2120 people, and nearly 100,000 cases have been treated, according to the Haitian government.
The report by Mr Piarroux found that the source of the outbreak was a Nepalese peacekeeping base, whose toilets contaminated the Artibonite river, according to a copy seen by the Associated Press news agency.
One has to wonder if this epidemic was "allowed" to happen to silence the Haitian people, who were beginning to speak out about the lack of promised aid and infrastructure.
There are a number of countries (the US included) which find it in their best interests to keep Haitians perpetually disenfranchised and appallingly poor.