Public Health Agency of Canada

As businesses safely reopen and vaccination rates increase, continuing to test and screen for COVID-19 can help prevent outbreaks, maintain safe workplaces and keep the economy running.

Pregnancy increases the risk of severe illness from COVID-19. The National Advisory Committee on Immunization (NACI) recommends you get a complete series with an mRNA COVID-19 vaccine if you're pregnant or breastfeeding. Getting the COVID-19 vaccine can prevent serious illness, hospitalization...

Before becoming pregnant, talk to your health care provider or local public health authority to make sure your vaccines are up to date. Some vaccines are generally not recommended during pregnancy. Live vaccines such as MMR (mumps, measles and rubella) and chicken pox (varicella) should be given...

This report presents evidence-informed recommendations for testing a vaccinated population and vaccinated individuals.

The Pfizer-BioNTech and Moderna COVID-19 vaccines are mRNA vaccines that were initially authorized by Health Canada for use in individuals 16 and 18 years of age and older, respectively, in December 2020. On May 5, 2021, Health Canada expanded the Interim Order authorization for the...

When people still show symptoms of COVID-19 for weeks or months after their initial recovery, it’s called post COVID-19 condition. It’s also known as long COVID. Post COVID-19 condition may occur in some people after infection.

If you missed certain vaccines before or during pregnancy, you should get them after your baby is born. This will lower the chance that you'll get a vaccine-preventable disease and spread it to your baby. This is especially important while your baby is too young to receive certain vaccines.

Vaccinations during pregnancy protect both you and your developing baby from serious infections. They also help protect infants after birth, when they're too young to be vaccinated. If you're pregnant, you should be vaccinated against whooping cough (pertussis) and flu. Talk to your health care...

The Government of Canada has put in place emergency measures under the Quarantine Act to slow the introduction and spread of COVID-19 and variants in Canada. Unvaccinated asymptomatic travellers 12 years of age and over are not required to quarantine upon entering Canada if they meet the...

The Government of Canada has put in place emergency measures under the Quarantine Act to slow the introduction and spread of COVID-19 and variants in Canada. Fully vaccinated travellers without signs and symptoms of COVID-19 are not required to quarantine upon entering Canada if they comply with...

Provinces and territories decide how, who and when to vaccinate populations living in their region. They consider advice from a number of expert sources as well as their unique situations to vaccinate the people in their region.

Vaccination is one of the most effective ways to protect our families, communities and ourselves against COVID-19. Evidence indicates that vaccines are very effective at preventing severe illness, hospitalization and death from COVID-19, including against Alpha and Delta variants of concern....

As COVID-19 continues to circulate in Canada and more people are getting vaccinated, different public health measures (PHMs) may be required, based on the level of transmission and other key indicators outlined below. This interim guidance provides considerations for adjusting PHMs in the context...

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...

People with COVID-19 do not always recognize their early symptoms. Even if you do not have symptoms now, it is possible to transmit COVID-19 before you start showing symptoms or without ever developing symptoms. You need to quarantine (self-isolate) for 14 days at home when you may have been...

The Canada Communicable Disease Report is a bilingual, open-access, peer-reviewed journal on the prevention and control of emerging and persistent infectious diseases

The Canada Communicable Disease Report is a bilingual, open-access, peer-reviewed journal on the prevention and control of emerging and persistent infectious diseases

"Gram-negative bacilli commonly encountered in healthcare settings include species such as Pseudomonas aeruginosa, Acinetobacter spp. and Stenotrophomonas maltophilia, and species belonging to the Enterobacteriaceae family, such as Escherichia coli, Klebsiella pneumoniae, and Enterobacter...

"Seasonal influenza, a respiratory infection caused by the influenza virus is a significant cause of morbidity and mortality, especially in individuals who are at the extremes of age, pregnant, immune compromised, or have chronic underlying disease. Morbidity and hospitalization rates for...

Parents are responsible for the well-being of their children, including protecting them from illness caused by diseases that are vaccine-preventable. Learn about vaccination and why it is important to your child’s health. Parents agree that feeding and sleeping schedules are important to help...