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Avian Influenza

Avian influenza A (H5N1) was first detected in Canada in 2021 and continues to circulate worldwide with ongoing detections in various bird populations, and in various wild and domestic mammalian species, including dairy cattle.

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Interactive Report

This tool provides comprehensive epidemiological information of respiratory virus activity in Ontario, including COVID-19, influenza and other respiratory viruses. Explore case trends, laboratory testing, and outbreaks, as well as COVID-19 outcomes and vaccination.

Webpage
Updated 6 Dec 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.

326 KB
Updated 10 Dec 2024

Surveillance Report

Short-term projections of SARS-CoV-2, influenza, and respiratory syncytial virus activity, and risk of related severe disease among pediatric and adult populations.

1.9 MB
Updated 6 Dec 2024

Surveillance Report

This report summarizes Mycoplasma pneumoniae laboratory testing performed by Public Health Ontario, with a focus on testing in 2024.

279 KB
Published 29 Nov 2024

Surveillance Report

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

315 KB
Updated 5 Dec 2024

Interactive Report

Provides epidemiological information on substance use and harms data in Ontario. Users can explore the most recent 10 years of data for emergency department visits, hospitalizations and deaths. Results can be viewed by public health unit, age, sex, and in some cases, drug type.

Webpage
Published 13 Nov 2024

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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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