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Notice:

On Monday, September 30, Public Health Ontario is observing the National Day for Truth and Reconciliation. As a result, service levels will be consistent with those on statutory holidays. We appreciate your understanding.

Child and Youth Health

Healthy child development is a complex interplay between genetics, physical, family, social and environmental factors.

Checkout our new child and youth health resources.

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Quick Access

Summary Report

Provides recommendations on the need for a provincial immunization registry to improve efficiencies in the delivery of immunization services and promote equitable access to vaccines in Ontario.

1 MB
Updated 24 Sep 2024

Epidemiological Summary

This report summarizes key demographic, testing and vaccination information on mpox cases reported in Ontario with a focus on cases reported in 2024 to date.

328 KB
Updated 17 Sep 2024

Surveillance Report

Epidemiology of measles in Ontario in 2024, as well as trends over time for 2013-2023.

399 KB
Updated 26 Sep 2024

Environmental Scan

This scan describes the guidance on the use of piercing devices in Canada and select international jurisdictions.

474 KB
Updated 29 Aug 2024

Evidence Synthesis

Explore resources that may support the development of public health surveillance of climate change impacts on the health of populations in Ontario.

938 KB
Published 15 Aug 2024

Surveillance Report

Map provides provincial picture of where there are established blacklegged tick populations, the tick vector responsible for four Diseases of Public Health Significance: anaplasmosis, babesiosis, Lyme disease and Powassan virus infection.

652 KB
Published 3 May 2024

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About PHO

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.

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