The latest cholera surge is in Yemen, and Haiti is still fighting the world's worst outbreak. Why does this waterborne disease remain a global health risk?
Preval has a mixed legacy. He was recognized as a hard worker, but widely criticized in his second term for what was seen as a weak and absent response to Haiti's devastating 2010 earthquake.
After various rounds of voting were annulled, canceled, rescheduled and challenged, Haiti's electoral council has declared businessman Jovenel Moise the winner. He'll be sworn in on Feb. 7.
By way of Brazil, where they migrated in recent years, many Haitians are now hoping to resettle in the U.S. But a shift in policy has left some 5,000 stranded at the U.S.-Mexico border.