Study suggests UN force brought cholera to Haiti

PORT-AU-PRINCE, HAITI (AP) - Evidence “strongly suggests” that a United Nations peacekeeping mission brought a cholera strain to Haiti that has killed thousands of people, a study by a team of epidemiologists and physicians says.

The study is the strongest argument yet that newly arrived Nepalese peacekeepers at a base near the town of Mirebalais brought with them the cholera, which spread through the waterways of the Artibonite region and elsewhere in this impoverished Caribbean country.

The disease has killed more than 5,500 people and sickened more than 363,000 others since it was discovered in October, according to the Haitian government.

“Our findings strongly suggest that contamination of the Artibonite (river) and 1 of its tributaries downstream from a military camp triggered the epidemic,” said the report in the July issue of Emerging Infectious Diseases, a journal of the U.S. Centers for Disease Control and Prevention.

The article says there is “an exact correlation” in time and place between the arrival of a Nepalese battalion from an area of its South Asian homeland that was experiencing a cholera outbreak and the appearance of the first cases in the Meille river a few days later.

The remoteness of the Meille river in central Haiti and the absence of other factors make it unlikely that the cholera strain could have come to Haiti in any other way, the report says.

The Associated Press made several phone calls and sent emails Wednesday seeking comment from the U.N. mission in Haiti, but spokesmen had not responded by Wednesday night.

The study comes as health workers in Haiti wrestle with a spike in the number of cholera cases brought on by several weeks of rainfall. The aid group Oxfam said earlier this month that its workers were treating more than 300 new cases a day, more than three times what they saw when the disease peaked in the fall.

Cholera is caused by a bacteria that produces severe diarrhea and is contracted by eating or drinking contaminated food or water.

The disease has spread to the neighboring Dominican Republic, where more than 36 deaths have been reported since November.

Epidemiologist Renaud Piarroux, the lead author of the CDC journal article, was initially sent by the French government in late 2010 to investigate the origins of Haiti’s outbreak. He authored a report for U.N. and Haitian officials that said the Nepalese peacekeepers likely caused the outbreak, a copy of which was obtained at the time by the AP.

The latest study was more complete and its methodology was reviewed by a group of scientists.

For nearly two months after the outbreak last October, the United Nations, CDC and World Health Organization refused to investigate the origin of the cholera, saying that it was more important to treat patients than to try to figure out the source.

U.N. Secretary-General Ban Ki-moon, under pressure from anti-U.N. protests by Haitians and mounting circumstantial evidence pointing to the troops, relented in December, requesting an investigation amid reports of poor sanitation at the U.N. base housing the peacekeepers near Mirebalais.

In May, a U.N. independent panel of experts found that the cholera outbreak was caused by a South Asian strain imported by human activity that contaminated a river system where untold thousands of Haitians wash, bathe, drink and play.

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