Tuberculosis (TB)
Tuberculosis (TB) is a respiratory disease caused by the bacteria Mycobacterium tuberculosis. TB can be spread through the air when a person with active disease in their lungs or airways coughs, sneezes or talks. Exposure to TB can also result in latent TB infection (LTBI) – those with LTBI do not have symptoms and cannot spread TB to others. TB is preventable, treatable and curable with antibiotics.
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PHO Rounds: Respiratory Season 2026–27, Part 1: Surveillance and Testing of Respiratory Pathogens in Ontario
The first session will provide an overview of current epidemiological trends for COVID-19, influenza, and respiratory syncytial virus (RSV) activity in Ontario, Canada and internationally. The session also describes the planned approach to testing across the provincial laboratory network for respiratory viruses for the 2026–27 season.
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