MIREBALAIS, Haiti — UN investigators took samples of foul-smelling waste trickling behind a Nepalese peacekeeping base toward an infected river system yesterday, following persistent accusations that excrement from the newly arrived unit caused the cholera epidemic that has sickened more than 4,000 people in the earthquake-ravaged nation.
Journalists visiting the base unannounced happened upon the investigators. Vincenzo Pugliese, mission spokesman, confirmed after the visit that the military team was testing for cholera — the first public acknowledgment that the 12,000-member force is directly investigating allegations its base played a role in the outbreak.