(DNAINFO)  Jeff Mays — The worst Legionnaire’s disease outbreak in the city’s history, which has now killed 12 people and sickened 121, has been “contained,” Mayor Bill de Blasio said Thursday.

While the total number of people infected by the disease has climbed to 121 from 119 on Wednesday, no new cases linked to the South Bronx cluster have been diagnosed in 10 days, said Health Commissioner Dr. Mary Bassett.

“We’ve been saying very consistently that this has been contained and we have no new cases,” de Blasio said during a press conference at Lincoln Hospital.

Bassett explained that the city won’t be able to say the outbreak is over until 14 days after they determine the source of the outbreak and it is decontaminated.

Officials believe that one or more of several cooling towers in the South Bronx is the likely source of the outbreak but are awaiting the results of molecular testing to determine the culprit.

“Our epidemiological data, which shows a rapid decline in cases which have been diagnosed, is very heartening,” said Bassett.

Source: De Blasio Says South Bronx Legionnaires’ Outbreak is ‘Contained’ – Mott Haven – DNAinfo.com New York