Skip to main content

The Globe and Mail

Death toll in Quebec’s legionnaires’ outbreak rises to 10

This 2009 colorized 8000X electron micrograph handout image provided by the Centers for Disease Control and Prevention shows a large grouping of Gram-negative Legionella pneumophila bacteria.


An outbreak of legionnaires' disease in Quebec City has claimed its 10th victim.

Public health authorities say there have now been 165 cases since the outbreak began in mid-July.

The Quebec government ordered a public inquiry into the problem earlier this week.

Story continues below advertisement

The source is thought to be the cooling systems of two building towers.

The deadly bacteria grow in the stagnant water of cooling systems and spread in little droplets through air conditioning. Local authorities have disinfected the systems in more than 100 buildings and say the outbreak is now contained.

Public health officials have warned that cases of legionnaires' could still surface among those infected earlier.

Report an error

The Globe invites you to share your views. Please stay on topic and be respectful to everyone. For more information on our commenting policies and how our community-based moderation works, please read our Community Guidelines and our Terms and Conditions.

We’ve made some technical updates to our commenting software. If you are experiencing any issues posting comments, simply log out and log back in.

Discussion loading… ✨

Combined Shape Created with Sketch.

Combined Shape Created with Sketch.

Thank you!

You are now subscribed to the newsletter at

You can unsubscribe from this newsletter or Globe promotions at any time by clicking the link at the bottom of the newsletter, or by emailing us at