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.

Featured

 

Event

PHO Microbiology Rounds: Legionellosis in Ontario: Epidemiology and Testing Updates

This Microbiology Rounds will provide an overview of the transmission, environmental sources, risk factors, clinical manifestations, epidemiology, and burden of legionellosis, with a focus on current trends in Ontario.

See the Event Details
Chat icon

Contact the Department

Communicable Disease Control

Communicable.DiseaseControl@oahpp.ca

Updated 20 Oct 2025