Bio-secure bubble

A bio-secure bubble, also known as a bubble,^[1] or hub city,^[2]^[3] was a hosting arrangement for sporting events that emerged during the COVID-19 pandemic, under which events were held at a centralized site, often behind closed doors, with strict quarantine and safety protocols in order to prevent the spread of COVID-19. A bubble was established for a single sports season, tournament, or for an ongoing series of events, allowing them to still be held and made available to broadcast audiences.

^ Benz, Tim (July 15, 2020). "A look at how Toronto 'hockey bubble' will be set up for Penguins". Pittsburgh Tribune-Review. Retrieved August 1, 2020.
^ "NHL hub cities of Edmonton, Toronto ready for Stanley Cup Qualifiers". NHL.com. Retrieved 2021-02-13.
^ Ralph, Dan (2020-07-21). "Winnipeg named CFL hub city for 2020 season". Winnipeg. Retrieved 2021-02-13.

[Benz-1] Benz, Tim (July 15, 2020). "A look at how Toronto 'hockey bubble' will be set up for Penguins". Pittsburgh Tribune-Review. Retrieved August 1, 2020.

[2] "NHL hub cities of Edmonton, Toronto ready for Stanley Cup Qualifiers". NHL.com. Retrieved 2021-02-13.

[3] Ralph, Dan (2020-07-21). "Winnipeg named CFL hub city for 2020 season". Winnipeg. Retrieved 2021-02-13.

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