Legionellosis (Legionella, Legionnaires Disease)

Legionella are bacteria found in natural water environments and can grow in human-made water systems, such as plumbing, cooling towers, hot tubs, showers and decorative fountains. Breathing in small droplets or vapour of contaminated water can cause mild infection (Pontiac fever) with flu-like symptoms or pneumonia (Legionnaires’ disease). The elderly and immunocompromised people are at greater risk of illness.

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PHO Webinar: Measles Update for Clinicians and Public Health

This session will provide an update on measles in Ontario including an overview of updated resources and guidance and common questions from the field.

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Updated 15 Dec 2023