lizette paul's family has been torn apart by the disease.ughter, brother, and father all died. "when i think about them," paul told us "i know the pain they had to go through before they passed away." paul is now one of those suing the united nations for bringing cholera to the country, an epidemic that began after u.n. peacekeepers arrived following the earthquake in 2010. nicole phillips is the attorney handling the case from port-au- prince. if the united nations wasn't here in haiti after the earthquake, would this outbreak have happened? >> no. the people thought that that water was still safe to drink, and they kept drinking it. and now, the cholera has spread so far into the river systems, that it would be impossible to eradicate. >> reporter: forensic studies have linked the spread of the disease to a flawed siewnl system at the u.n.'s base for soldiers from nepal. a u.n. test showed the culprit bacteria came from southeast asia. cholera, spread through human feces, induces severe vomiting and diarrhea and can kill if not treated qui