Both state and city officials are saying the outbreak of Legionnaires' Disease in the Bronx is tapering off. But as NY1’s Erin Clarke explains, this last month has been uncharted territory for responders.

"We have confronted a reality in this outbreak that New York City has never seen before," said Mayor Bill de Blasio in a Saturday afternoon press conference.

Ten dead and 108 sickened by Legionnaires' Disease caused by a bacteria that breeds in cooling towers.

The outbreak that started about one month ago caused the Bronx Borough President and later the City Health Department to reach out for state help.

"Imagine for a moment if you don't know where the cooling towers are because there's never been a list. You have to create one from scratch," the mayor said.

On Saturday, 150 workers were sent by Albany to sample more than 100 cooling towers the city had not yet reached in Hunts Point, Mott Haven, High Bridge, Fordham and Mount Eden.

"We're here today to help manage this process," said Jim Malatras, Director of State Operations.

"If the state had personnel that could help us get there even an hour earlier, we welcomed it," said Mayor de Blasio.

On Saturday, Mayor de Blasio announced that testing of the entire area impacted by the outbreak should be completed by the end of the weekend.

The mayor also said the city found the bacteria that causes Legionnaires' at five additional sites.

Cooling towers at a Verizon building on Hoe Avenue, Bronx Housing Court, the Bronx Hall of Justice, the General Post Office on the Grand Concourse and Samuel Gompers High School have since been disinfected, and the health commissioner said there is no reason to think anyone was sickened from those buildings.

"We correctly identified the community source of this outbreak in those initial cooling towers that tested positive," said City Health Commissioner Dr. Mary Bassett.

Still, the city insists that the disease, which is a form of pneumonia, has hit its peak, noting that no new cases of Legionnaires' have been reported in the last four days. Moreover, of the 94 people hospitalized, 76 have been treated and released.

"At height of the outbreak, we had close to 30 patients in the Lincoln Hospital, and over 12 of them were in the emergency department. As of today, only two patients are in the ICU," said Dr. Ram Raju, President and CEO of the New York City Health and Hospitals Corporation.

The city has also ordered all buildings with cooling towers that haven't been tested during the outbreak to be tested and disinfected if contaminated.

Failure to do so is a misdemeanor.