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  2. The COVID-19 pandemic in Canada is part of the ongoing worldwide pandemic of coronavirus disease 2019 . 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 .

  3. Mar 2, 2022 · Updated by The Canadian Encyclopedia. Published Online March 2, 2022. Last Edited March 9, 2023. COVID-19 is a severe acute respiratory syndrome caused by a new type of coronavirus, SARS-CoV-2, that emerged in 2019. The virus caused the first cases in China and then quickly spread around the world.

  4. Jan 3, 2023 · It appeared in 2019. In approximately three years about 759 million people around the world had COVID-19. In Canada, about 4.6 million people had COVID-19. Around 51,447 died in Canada. The COVID-19 pandemic was one of the most dangerous pandemics in world history.

  5. Apr 22, 2022 · COVID-19 Vaccines. Article by Christopher J. Rutty. Updated by The Canadian Encyclopedia. Published Online April 22, 2022. Last Edited March 9, 2023. In early 2020, as the COVID-19 pandemic accelerated, it seemed very unlikely that a safe and effective vaccine could be developed and deployed within one to two years.

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