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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.

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...

The National Advisory Committee on Immunization (NACI) is an External Advisory Body that provides the Public Health Agency of Canada (PHAC) with independent, ongoing and timely medical, scientific, and public health advice in response to questions from PHAC relating to immunization. This...

This document outlines the recommended goals, objectives, and activities for COVID-19 surveillance in Canada. These guidelines are based on current available scientific evidence and expert opinion and are subject to change as new information becomes available. They should be read in conjunction...

Health Promotion and Chronic Disease Prevention in Canada: Research, Policy and Practice (the HPCDP Journal) is the monthly, online scientific journal of the Health Promotion and Chronic Disease Prevention Branch of the Public Health Agency of Canada. The journal publishes articles on disease...

COVID-19 information for physicians, nurses, pharmacists and other health care providers.

Health Promotion and Chronic Disease Prevention in Canada: Research, Policy and Practice (the HPCDP Journal) is a bilingual, peer-reviewed scientific journal of the Public Health Agency of Canada’s Health Promotion and Chronic Disease Prevention Branch. COVID-19 Rapid Release Articles