Public Health Agency of Canada

The World Health Organization (WHO) refers to symptoms lasting for weeks or months after a COVID-19 infection as post COVID-19 condition. Some studies have reported later symptoms in patients with a severe COVID-19 infection. For example, those who were hospitalized or needed intensive care...

The Public Health Agency of Canada’s (PHAC) COVID-19 immunization recommendations for individuals previously vaccinated with COVID-19 vaccines not authorized by Health Canada is intended to support local, territorial, and provincial, decision-making by public health departments and health care...

Information on the different types and uses of masks and respirators approved for use in Canada, and their importance during the COVID-19 pandemic to help slow the spread of coronavirus and protect health care providers.

How to quarantine or isolate at home. Quarantine or isolation can reduce the spread of COVID-19, including its variants, in your household and community. That's why it's important to follow the advice of your local public health authority about when and how to quarantine or isolate.

The HBSC is a World Health Organization, on-going, cross-national research study of youth aged 11 to 15 years old that collects data every 4 years. The study aims to gain insight into young people's: well-being; health behaviours; and social contexts.

On this page, you will find resources that members of school communities can use to prevent or delay substance use among youth and reduce the harms associated with youth substance use.

The Framework contributes to the implementation of the Mental Health Strategy for Canada: Changing Directions, Changing Lives, which is focused on improving the mental health and well-being of all Canadians. It also aligns with the First Nations Mental Wellness Continuum Framework (the Continuum)...

This statement contains NACI’s independent advice and recommendations, which are based upon the best current available scientific knowledge. This document is being disseminated for information purposes. People administering the vaccine should also be aware of the contents of the relevant product...

As part of the new initiative on Promoting Health Equity: Mental Health of Black Canadians Fund, the Public Health Agency of Canada (PHAC) is partnering with community-based organizations, researchers and others in Black communities to generate new evidence on culturally focused programs and...

Budget 2019 announced $50 million over 5 years to support the implementation of key elements of Canada’s first national dementia strategy. Most of Budget 2019 funding ($40M) will be administered through the Dementia Strategic Fund (DSF), which will support a variety of activities, including the...

The Public Health Agency of Canada (PHAC) uses the Canadian Chronic Disease Surveillance System (CCDSS) to conduct national surveillance of 20 chronic conditions, including diagnosed dementia ("all types of dementia" when not specifically mentioned) and diagnosed ischemic heart disease (IHD)....

Zoonotic diseases are infectious diseases caused by bacteria, viruses and parasites that spread between animals and humans. Lyme disease is a multisystemic infection which can lead to health issues such as erythema migrans rash, cardiac, neurologic or arthritic manifestations. It is caused by the...

The Infectious Disease and Climate Change Fund (IDCCF) addresses the impact of climate change on human health in Canada by: increasing capacity, enabling Canadians and communities and improving adaptability and resiliency.

COVID-19 has highlighted issues that make it a challenge to collect, share, and use health data for the benefit of Canadians. 'Health data' includes public health, health system and population health data. Reliable, timely and relevant public health data are crucial to help public health...

The Future-Oriented Statement of Operations has been prepared on the basis of government priorities and the Public Health Agency of Canada’s (the Agency) plans as described in the Departmental Plan. The information in the forecast results for fiscal year 2019-20 is based on actual results as at...

Individual surveillance systems have various public health goals and policy objectives. In recent years, the scope of, and our reliance on, surveillance systems have grown significantly in all parts of the world because of globalization and threats of multi-drug resistant bacteria, bioterrorism...

The 2019 to 2022 Federal Sustainable Development Strategy (FSDS) presents the Government of Canada’s sustainable development goals and targets, as required by the Federal Sustainable Development Act. In keeping with the purpose of this Act to provide the legal framework for developing and...

The national incidence of foodborne pathogens is actively collected and reported by the National Enteric Surveillance Program (NESP). The NESP has been in operation since April 1997 and is designed to provide timely analysis and reporting of laboratory confirmed enteric disease cases in Canada.

The Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS) monitors trends in antimicrobial use and antimicrobial resistance in selected bacterial organisms from human, animal and food sources across Canada. The program is based on several representative and...

The Joint Statement on Shaken Baby Syndrome (SBS), originally published in 2001, was a national collaboration to recognize and provide guidance on this important public health issue. The Joint Statement on SBS required revisions to reflect developments in knowledge, understanding and practice...