COVID-19 pandemic in Canada has part(s) 2020 COVID-19 pandemic in Nova Scotia
The COVID-19 pandemic in Canada is part of the ongoing worldwide pandemic of coronavirus disease 2019 (COVID-19). It is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Most cases over the course of the pandemic have been in Ontario, Quebec, British Columbia and Alberta. Confirmed cases have been reported in all of Canada's provinces and territories.The virus was confirmed to have reached Canada on January 25, 2020, after an individual who had returned to Toronto from Wuhan, Hubei, China, tested positive. The first case of community transmission in Canada was confirmed in British Columbia on March 5. In March 2020, as cases of community transmission were confirmed, all of Canada's provinces and territories declared states of emergency. Provinces and territories have, to varying degrees, implemented school and daycare closures, prohibitions on gatherings, closures of non-essential businesses and restrictions on entry. Canada severely restricted its border access, barring travelers from all countries with some exceptions. The federal Minister of Health invoked the Quarantine Act, introduced following the 2002–2004 SARS outbreak. For the first time in its legislative history, the act has been used, legally requiring all travelers (excluding essential workers) returning to the country to self-isolate for 14 days, until rules were changed to accommodate fully vaccinated travelers.
By mid to late summer of 2020, the country saw a steady decline in active cases until the beginning of late summer. Through autumn, there was a resurgence of cases in all provinces and territories. On September 23, 2020, Prime Minister Trudeau declared that Canada was experiencing a "second wave" of the virus. New restrictions from provincial governments were put in place once again as cases increased, including variations of regional lockdowns. In late November, there was the disbandment of the Atlantic Bubble, a travel-restricted area of the country (formed of the four Atlantic provinces: New Brunswick, Prince Edward Island, Nova Scotia and Newfoundland and Labrador) which had been established in July, 2020. The federal government passed legislation to approve further modified economic aid for businesses and individuals.Nation-wide cases, hospitalizations and deaths spiked preceding and following the Christmas and holiday season in December, 2020 and January, 2021. Alarmed by hospital capacity issues, fatalities and new cases, heavy restrictions (such as lockdowns and curfews) were put in place in affected areas (primarily Ontario, Quebec, and Alberta) and across the country. These lockdowns caused active cases to steadily decline, reaching a plateau in active cases in mid-February 2021. During a third wave of the virus, cases began rising across most provinces west of Atlantic Canada in mid-March, prompting further lockdowns and restrictions in the most populous provinces like Ontario and Quebec. Due to a relatively low volume of cases in the Atlantic provinces, the travel-restricted Atlantic Bubble was planned to reopen; however, in late April, the third wave had spread to the Atlantic provinces. In response, Newfoundland and Labrador, Prince Edward Island, and Nova Scotia reinstated travel bans toward the rest of the country.
Following Health Canada's approval of the Pfizer–BioNTech COVID-19 vaccine, and later the mRNA-1273 vaccine developed by Moderna, mass vaccinations began nationwide on December 14, 2020. On February 26, 2021, Health Canada approved the Oxford–AstraZeneca COVID-19 vaccine for use, and on March 5, 2021, they additionally approved the Janssen COVID-19 vaccine for a total of four approved vaccines in the nation. However, most provinces discontinued first doses of Oxford-AstraZeneca by May 12, 2021, while the administration of the Janssen vaccine was determined unnecessary. Canada became one of the most vaccinated countries in the world, with a continually high uptake of the vaccine. Despite high general uptake of the vaccine, cases began to surge particularly amongst the unvaccinated population in provinces like Alberta, which had removed nearly all pandemic restrictions.Near the end of summer 2021, cases began to surge across Canada, notably in the provinces of British Columbia, Alberta, Quebec and Ontario, particularly amongst the unvaccinated population. During this fourth wave of the virus, return to pandemic restrictions such as mask mandates were reinstated in provinces like British Columbia and Alberta. The surge in cases was largely deemed to be a "pandemic of the unvaccinated" and resulted in the introduction of vaccine passports, for all provinces and two of the territories. Federally, Prime Minister Justin Trudeau instated requirements for vaccination in order to partake in air travel, as well as those who ride Via Rail and Rocky Mountaineer trains as of October 30, 2021. Additionally, the mandate included any federally regulated workers. In January 2022, all of Canada's provinces and territories were experiencing record-level case numbers, primarily driven by the SARS-CoV-2 Omicron variant, which caused provincial and territorial governments to reintroduce restrictions surrounding travel and isolation. However, in mid-February active caseloads and hospitalizations began to decrease and towards the end of February 2022, almost all provinces and territories had announced plans to lift restrictions by early March or mid-March 2022, if epidemiology remained favorable.From March 20, Canada and the United States temporarily restricted all non-essential travel across their land border. The U.S. did not restrict non-essential air travel into the country by Canadians, but Americans were prohibited from boarding flights into Canada per U.S. restrictions—a non-reciprocal restriction that was criticized as being contradictory. On April 16, Trudeau stated that the Canada/U.S. border restrictions would remain in place "for a significant amount of time". The next day, Canada and the United States had agreed to extend their entry restrictions, which were to expire on April 21, for an additional 30 days beyond that date.On April 20, the federal government introduced the "ArriveCAN" mobile app, which is used to conduct entry screenings and submit documentation; use of the app became mandatory in November.Since March 30, individuals showing COVID-19 symptoms were to be refused boarding on domestic flights (10 seats or more) and passenger trains. However, it excluded buses and intercity passenger rail services. From April 20, all travellers were required to wear face masks while departing and arriving on air travel, including during security screenings. Those who did not comply were prevented from proceeding.As the land border with the United States continued to be closed to non-essential travel, the Canadian government announced plans in October to allow family members to reunite under compassionate terms. Within the country, the Canadian provinces of New Brunswick, Prince Edward Island, Nova Scotia and Newfoundland and Labrador established the Atlantic Bubble, restricting travel from other provinces but allowing free movement amongst residents of the member provinces.On January 6, 2021, the federal government announced that all incoming travellers must present proof of a negative COVID-19 PCR test conducted within 72 hours of their departure time to board flights into Canada.On January 29, 2021, due to concerns surrounding SARS-CoV-2 variants, Trudeau announced a series of new travel restrictions. Travellers arriving in Canada would be required to receive a COVID-19 PCR test on arrival and must quarantine at an "approved hotel" at their own expense. At the same time, they awaited test results or recovery and were subject to "increased surveillance" during the remainder of the mandatory 14-day quarantine period. Foreign flights were only allowed to land in Calgary, Montreal, Toronto, or Vancouver. To discourage non-essential travel, the major airlines agreed to suspend all flights to the Caribbean and Mexico until April 30, 2021. On February 12, it was announced a third PCR test would also be required at the end of the 14-day quarantine period. The new rules for international travel went into effect on February 22.In July 2021, the government lifted the quarantine requirement for Canadian citizens and permanent residents re-entering the country, provided they submit proof of vaccination via the ArriveCAN app or website.  On August 9, 2021, Canada reopened its land border to American citizens and permanent residents that are fully-vaccinated. However, the U.S. land border remained closed to Canadians entering the United States  until November 8, 2021, when the U.S. began to allow non-essential land travel into the country, with a vaccine mandate for residents 18 and over (enforced via random checks). However, as with air travel, anyone re-entering the country was required to present proof of a negative COVID-19 PCR test conducted within 72 hours of their arrival; this test could alternatively be obtained in Canada if the traveler had been in the country for less than 72 hours.On October 6, 2021, it was announced that all passengers of federally-regulated transportation over the age of 12 (including air travel, cruises, and Via Rail or Rocky Mountaineer trains) would be required to be fully-vaccinated beginning October 30, 2021. Until November 30, 2021, a recent negative test was also accepted.Beginning January 15, 2022, international truckers entering the country were required to be fully-vaccinated; this decision instigated a protest convoy—backed largely by supporters of alt-right and far-right movements—which culminated in a multi-day occupation of downtown Ottawa, and evolved into a general protest against all COVID-19 vaccine mandates.Beginning April 1, 2022, pre-entry PCR testing requirements were dropped for fully-vaccinated travelers entering the country. However, air travelers were still subject to random testing as part of surveillance for variants (which would not require self-isolation).On September 26, 2022, it was announced that all remaining COVID-19-related travel restrictions and mandates would be dropped effective October 1, 2022; this includes vaccine requirements, masking requirements, random tests, and the requirement to submit documentation via ArriveCAN.However on December 31, 2022, the government announced that mandatory testing will be reinstated for travellers entering from China beginning January 5, 2023.
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