The outbreak has infected 69,776 people since it was first detected in mid-October, of whom 29,871 have been hospitalized, it said.
To date, 146 have died of the virulent diarrheal disease in the destroyed capital of Port-au-Prince, where more than one million people have been living in sprawling tent cities since a January earthquake.
Officials fear the disease could spread quickly there because residents have little access to proper sanitation.
There have been isolated cases beyond Haiti’s borders — four in the neighboring Dominican Republic and one in Miami, Florida.