COVID-19 pandemic in Canada

Initial Outbreak and Early Response

The first confirmed case of COVID-19 in Canada was identified on January 25, 2020, in a Toronto resident who had returned from Wuhan, China. In the following weeks, federal authorities activated the Emergency Operations Centre on January 15 and began enhanced health screenings at major airports in Montreal, Toronto, and Vancouver. The World Health Organization declared a Public Health Emergency of International Concern on January 30, and by March 5, the first case of community transmission was confirmed in British Columbia. As community spread became evident across the country in March, all provinces and territories declared states of emergency. The federal government invoked the Quarantine Act on March 26, legally mandating a 14-day self-isolation period for most returning travelers. Border restrictions were implemented on March 16, limiting entry primarily to citizens, permanent residents, and U.S. citizens, and international flights were funneled to four major airports.

Initial preparations were hampered by a national shortage of personal protective equipment, a consequence of previous federal funding cuts to PPE stockpiles. Public health messaging in March 2020, led by Chief Public Health Officer Dr. Theresa Tam, focused on personal hygiene and social distancing, with recommendations on non-medical masks coming later in April. The early response also involved significant federal funding for research, with an initial $275 million announced on March 11 for 47 projects aimed at detecting and managing the virus, followed by funding for an additional 49 projects on March 19. These early actions set the stage for a protracted public health campaign that would evolve over several years and multiple waves of infection.

Epidemiological Waves and Public Health Measures

The pandemic unfolded in Canada through a series of distinct waves, each prompting shifts in government policy and public health restrictions. The initial wave peaked in the spring of 2020, leading to widespread closures of schools, non-essential businesses, and prohibitions on gatherings. A period of lower case counts in the summer allowed for the creation of the Atlantic Bubble in July, permitting free movement among the four Atlantic provinces. A significant second wave was declared by Prime Minister Justin Trudeau on September 23, 2020, causing the dissolution of the Atlantic Bubble and the return of regional lockdowns. Cases, hospitalizations, and deaths spiked dramatically during and after the 2020-21 holiday season, leading to strict lockdowns and curfews, particularly in Ontario, Quebec, and Alberta.

A third wave driven by more contagious variants emerged in mid-March 2021, affecting most provinces west of Atlantic Canada and eventually spreading to the Atlantic region by late April, which prompted Newfoundland and Labrador, Prince Edward Island, and Nova Scotia to reinstate travel bans. Despite high vaccination rates, a fourth wave described as a pandemic of the unvaccinated surged in the late summer of 2021, leading to the reinstatement of mask mandates and the introduction of provincial vaccine passports. The highly transmissible Omicron variant drove record case numbers in January 2022, though hospitalizations began to decrease by mid-February. This led to the lifting of almost all provincial restrictions by March 2022. Key public health interventions throughout these waves included:

• Mandatory mask mandates on public transit and in indoor public spaces.
• Regional and province-wide lockdowns with varying levels of business and gathering restrictions.
• The implementation and later suspension of interprovincial travel bubbles.
• A federal mandate requiring vaccination for air travel, rail travel, and federally regulated workers, effective October 30, 2021.
• The use of the ArriveCAN app for border screening, made mandatory in November 2020.

Vaccination Campaign

Canada's mass vaccination campaign began on December 14, 2020, following Health Canada's approval of the Pfizer-BioNTech COVID-19 vaccine. The Moderna mRNA-1273 vaccine was approved shortly after, with the Oxford-AstraZeneca and Janssen vaccines receiving approval in February and March 2021, respectively. The rollout initially faced challenges related to global supply but accelerated through the spring of 2021. By March 2022, more than 85 percent of Canadians aged five and over were fully vaccinated, making Canada one of the most vaccinated countries in the world. Most provinces discontinued first doses of the Oxford-AstraZeneca vaccine by May 12, 2021, due to concerns about rare blood clots, and the Janssen vaccine saw limited use.

The high uptake was crucial in reducing severe outcomes, though vaccine passports became a tool in late 2021 to encourage vaccination and control transmission during the fourth wave. A July 2021 report from the Public Health Agency of Canada indicated that nearly 90 percent of reported COVID-19 cases were among unvaccinated individuals. The campaign was a central pillar of the government's strategy to end the acute phase of the pandemic, with vaccine requirements for travel and certain workplaces remaining in place for much of 2022. Early evidence from Alberta and Ontario confirmed that the Pfizer and Moderna vaccines remained highly effective against severe outcomes from the Alpha, Beta, Gamma, and Delta variants, with the Pfizer vaccine found to be 95 percent effective at preventing hospitalization or death from those variants seven days after the second dose.

Variants of Concern and Viral Evolution

The trajectory of the pandemic in Canada was significantly altered by the emergence of several variants of concern, which increased transmissibility, severity, or vaccine evasion. The first, the Alpha variant (B.1.1.7), was detected in Ontario in December 2020. It was followed by the Beta variant (first found in Alberta in January 2021), the Gamma variant (detected in Toronto in February 2021), and the highly impactful Delta variant, which was added to Canada's list of concerns in May 2021. Research indicated the Delta variant carried a higher risk of hospitalization, ICU admission, and death compared to earlier strains. A preprint study from the University of Toronto found the Delta variant had a 120 percent greater risk of hospitalization, a 287 percent greater risk of ICU admission, and a 137 percent greater risk of death than non-variant strains.

Studies confirmed that the Pfizer and Moderna mRNA vaccines remained highly effective at preventing hospitalization and death from these variants. The Omicron variant, which emerged in late 2021, drove the largest wave of infections due to its extreme transmissibility, though it tended to cause less severe disease in vaccinated populations. Over the course of the pandemic from 2020 to 2024, hundreds of different viral lineages, sublineages, and recombinants were recorded. By 2026, surveillance data indicated COVID-19 activity was very low, with the virus considered endemic and less dangerous than seasonal influenza. The WHO renamed key variants using Greek letters in May 2021, with B.1.1.7 becoming Alpha, P.1 becoming Gamma, B.1.617.2 becoming Delta, and B.1.351 becoming Beta.

Impact on Healthcare and Long-Term Care

The pandemic placed immense strain on Canada's healthcare system, repeatedly threatening hospital capacity, especially during waves in December 2020 and January 2022. This led to the cancellation of elective surgeries and the redeployment of medical staff to manage COVID-19 patients. The most devastating impact was felt in long-term care homes, where communal living and pre-existing staffing issues created conditions for outbreaks. By April 28, 2020, Dr. Theresa Tam reported that as many as 79 percent of Canada's COVID-19 fatalities were linked to these facilities. Pre-existing issues such as understaffing, aging infrastructure, and low-paid workers who worked across multiple homes exacerbated outbreaks and led to high mortality rates.

In response, the federal government issued guidelines recommending the restriction of visitors, the provision of PPE, and the limitation of staff movement between facilities. In April 2020, the Canadian Armed Forces were deployed to assist in overwhelmed long-term care homes in Quebec and Ontario, with personnel arriving in Quebec on April 17 and in Ontario after a request from Premier Doug Ford on April 22. The crisis in these homes prompted calls for systemic reform in the sector. On April 15, 2020, Prime Minister Trudeau announced plans to provide additional pay to long-term care workers, and Health Canada issued specific recommendations for these facilities to enforce physical distancing and screen staff.

Border and Travel Restrictions

Canada implemented strict border measures to control the importation of the virus. On March 16, 2020, entry was restricted to citizens, permanent residents, and U.S. citizens, with few exceptions for flight crews and diplomats. A mutual ban on non-essential travel with the United States at the land border began on March 20 and was renewed multiple times. International air travel was restricted to four airports: Calgary, Montreal, Toronto, and Vancouver, and from March 30, individuals showing symptoms were refused boarding on domestic flights and trains.

The Quarantine Act was used to mandate self-isolation, which later evolved into a hotel quarantine program for air travelers in February 2021, requiring multiple PCR tests. The ArriveCAN app, introduced in April 2020, became a tool for submitting travel documents and proof of vaccination. Requirements evolved with the pandemic, including a mandate for pre-departure negative tests and, later, proof of vaccination for re-entry. The table below outlines the progression of key federal travel measures.

These restrictions were gradually lifted as vaccination rates increased and the Omicron wave subsided. Almost all provinces and territories announced plans to lift restrictions by early March or mid March 2022. This followed a decrease in active caseloads and hospitalizations that began in mid February 2022. The decision was contingent on epidemiology remaining favorable, and by March 2022 more than 85 percent of Canadians aged five and over were fully vaccinated.

Transition to Endemicity and Legacy

The World Health Organization declared an end to the global health emergency on May 5, 2023, a milestone that Canada had effectively reached through high population immunity from vaccination and infection. The federal government ended its dedicated pandemic surveillance program in September 2024, at which point the national death toll stood at 60,871. By 2026, respiratory virus surveillance reports indicated COVID-19 was less dangerous than influenza, with very low levels of transmission and severe outcomes. The pandemic's social and economic legacy was deep, accelerating remote work, exposing inequalities, and triggering debate over public health authority and personal freedoms.

Institutions like the Canadian Museum of History began collecting artifacts and stories to document the national experience of the crisis. The pandemic prompted significant increases in healthcare funding and sparked discussions about reforming long-term care. While the acute crisis has passed, COVID-19 remains a circulating respiratory virus, and its impact on Canadian society, politics, and healthcare will be studied for decades. The pandemic response was formally based on planning documents like the Canadian Pandemic Influenza Preparedness guidelines and the Federal/Provincial/Territorial Public Health Response Plan for Biological Events, with the response plan escalated to level 3 by February 27, 2020.

Questions about COVID-19 pandemic in Canada

When was the first COVID-19 case confirmed in Canada?

The first confirmed case of COVID-19 in Canada was reported on January 25, 2020. The individual was a resident of Toronto, Ontario, who had recently returned from travel to Wuhan, Hubei Province, China. This case marked the beginning of the pandemic's direct impact on the country. The virus was confirmed to have reached Canada after this person tested positive upon their return from China.

How many people died from COVID-19 in Canada?

As of late September 2024, when the federal government ended its pandemic surveillance program, 60,871 people in Canada had died from COVID-19. Earlier figures, up to April 15, 2023, recorded approximately 51,921 deaths. The case fatality ratio for COVID-19 was lower than that of SARS in 2003, but the transmission was significantly greater, leading to a significant death toll. Statistics show that COVID-19 drastically declined in 2026 and now seems to be less dangerous than influenza.

When did COVID-19 vaccinations start in Canada?

Mass vaccinations began nationwide on December 14, 2020. This followed Health Canada's approval of the Pfizer BioNTech COVID 19 vaccine. Canada's vaccination campaign eventually achieved one of the highest uptake rates in the world, with over 85 percent of Canadians aged five and over fully vaccinated by March 2022. Health Canada later approved the Moderna, Oxford AstraZeneca, and Janssen vaccines for a total of four approved vaccines.

What was the Atlantic Bubble?

The Atlantic Bubble was a travel agreement formed in July 2020 between the four Atlantic provinces. It allowed unrestricted movement for residents of New Brunswick, Prince Edward Island, Nova Scotia, and Newfoundland and Labrador within the region. The bubble was disbanded in late November 2020 because of the second wave of the virus. It was later planned to reopen but was suspended again in late April 2021 when the third wave spread to the Atlantic provinces.

What were the main variants of concern in Canada?

Five main variants of concern significantly impacted Canada. The Alpha variant was first detected in Ontario in December 2020, followed by the Beta variant in Alberta in January 2021. The Gamma variant was detected in Toronto in February 2021, and the highly transmissible Delta variant was identified in spring 2021. The Omicron variant, which drove record case numbers in early 2022, emerged in late 2021. Over the five years from 2020 to 2024, hundreds of different lineages, sublineages, recombinants, and mutations were recorded.

When did the COVID-19 pandemic end in Canada?

The pandemic transitioned to an endemic state over time. The World Health Organization ended the global public health emergency on May 5, 2023. In Canada, by 2026, surveillance data showed COVID-19 had drastically declined and was considered less dangerous than seasonal influenza. The federal government formally ended its pandemic surveillance program in September 2024.

Sources and further reading

• COVID-19 pandemic in Canada (Wikipedia)
• COVID-19 Pandemic in Canada (thecanadianencyclopedia.ca)
• Canadian respiratory virus surveillance report - : - COVID-19 (health-infobase.canada.ca)
• COVID-19 and public history (historymuseum.ca)
• COVID-19 In Canada: A Timeline (museumofhealthcare.ca)

Checked by the Nosy Mag desk. Last updated 2026-10-24.