Public Health Ontario (PHO) keeps Ontarians safe and healthy. With our partners in government, public health and health care, we prevent illness and improve health. We provide the scientific evidence and expert guidance that shapes policies and practices for a healthier Ontario. PHO has locations across Ontario, including 11 laboratory sites.
Learn about our Strategic Plan »View our Vision, Mission, Mandate and Values »
PHO protects the health of Ontarians. We monitor, prepare for, detect, and respond to infectious disease outbreaks and environmental incidents.
We improve Ontarians’ health by providing evidence to address challenges like smoking, healthy eating, and physical activity.
We transform data into interactive tools and resources to monitor population health.
Go to Data and Analytics »
Our educational program builds the skills, capacity and competencies in Ontario’s health workforce to face tomorrow’s public health issues.
Go to Learning and Development »
Our experts guide and support health professionals with evidence and case studies on topics like immunization, environmental and occupational health, health promotion, infection prevention and control, and potential health emergencies.
Go to Services and Tools »
Our research informs health policy, transformsclinical and public health practice, and advanceslaboratory science.
Go to Research »Visit Laboratory Services »