Cannabis producer Organigram has admitted and apologized for its involvement in last year’s legionnaires’ disease outbreak in the Moncton area.

The New Brunswick government declared an outbreak of legionnaires’ disease in August 2019. It ended more than a month later after 16 people became ill from the pneumonia-like disease, 15 of whom were hospitalized.

Legionnaires’ disease is caused by bacteria called legionella that can be found in both natural bodies of water, such as ponds, lakes and streams, and in constructed water systems, such as air conditioners, cooling towers, whirlpools, spas and decorative fountains.

In cooling towers, the bacteria can be dispersed into the air and then carried by the wind for kilometres.

In October, health officials confirmed that they were able to conduct tests that confirmed the strain of bacteria found in the affected patients was linked to contaminated water at a single site. But, they repeatedly refused to disclose where it was.