Death toll from Legionnaires’ disease outbreak in New York City is now at 12

WATCH ABOVE: Bill de Blasio says the number of deaths due to an outbreak of Legionnaires’ disease in New York City has risen to 12.

NEW YORK – Two more people in the New York City borough of the Bronx have died of Legionnaires’ disease, bringing the death toll to 12 in the largest outbreak of the disease in New York City history, officials said Monday.

There are now 113 reported cases of Legionnaires’ in the Bronx, and cooling towers in 18 buildings have tested positive for the legionella bacteria, officials said. While cleaning crews crisscrossed the Bronx, the continued tension between state and city governments threatens to undermine officials’ expressions of confidence that the outbreak is tapering off.

The outbreak has become the city’s most significant public health crisis since last fall’s Ebola scare. For more than a month now, cases of Legionnaires’ – a form of pneumonia especially dangerous for the elderly and for people with underlying health issues – have been reported throughout a section of the South Bronx, the city’s poorest neighbourhood.

“We are dealing with a new set of realities we have never experienced that we have never encountered before in this city,” said de Blasio, who added that the nation’s largest city has had to create “a playbook” on the fly as to how to handle the crisis.

READ MORE: Teams deployed in NYC to test for Legionella bacteria amid state vs. city feud

Officials said that all but one of the 12 fatalities was more than 40 years old and all of them had underlying health problems. Because the disease has a 10-day incubation period there can be a lag in reporting cases, but de Blasio said Monday that city health officials believe there hasn’t been a new diagnosis since Aug. 3.

He and City Council Speaker Melissa Mark-Viverito introduced legislation that mandates inspections of cooling towers, which are rooftop mechanical structures used to cool large buildings. They eject a warm mist that can carry the bacteria.

As de Blasio spoke at the afternoon news conference, New Yorkers saw a split-screen image on their TVs that likely did not inspire much faith in the level of co-ordination between the city and state governments.

While de Blasio spoke at City Hall, Gov. Andrew Cuomo was holding his own news conference at his New York City office on the very same subject yet delivering different information about the number of buildings where legionella bacteria had been discovered. Staffers with both men did not say why the officials held separate events.

READ MORE: Death toll rises to 8 amid outbreak of Legionnaires’ disease in NYC

The city and state health commissioners put out a joint statement later Monday saying that three additional sites tested positive over the weekend for the bacteria, bringing the total to 18.

The earlier mix-up – and resulting questions from reporters to the mayor about the inconsistency, which clearly irritated de Blasio – was the latest chapter in the ongoing feud between the mayor and governor, who are both Democrats and claim to be friends.

Cuomo drew de Blasio’s ire last week when, in a seeming criticism of the city’s response to the outbreak, said that “we’re taking matters into our own hands” and ordered state inspection teams into the Bronx. He reiterated that Monday.

“We have been aggressive,” Cuomo said about the state’s response. “The aggressiveness was called for.”

The state is focusing on buildings outside the immediate impact zone, while the city’s teams are working within it. Bassett issued a commissioner’s order to clean all cooling towers in the city within the next 10 days.