A worker wearing a mask walks past the new modular structure on the grounds of Trillium Health Partners (THP) Mississauga Hospital in Mississauga, Ontario, Canada, April 11, 2020. A new modular structure is on construction on the grounds of THP Mississauga Hospital as a temporary facility with more than 80 beds for COVID-19 patients. (Photos: Xinhua)

Workers check mobile heating systems near the modular structure on the grounds of Trillium Health Partners (THP) Mississauga Hospital in Mississauga, Ontario, Canada, April 11, 2020. A new modular structure is on construction on the grounds of THP Mississauga Hospital as a temporary facility with more than 80 beds for COVID-19 patients.

A new modular structure is seen on the grounds of Trillium Health Partners (THP) Mississauga Hospital in Mississauga, Ontario, Canada, April 11, 2020. A new modular structure is on construction on the grounds of THP Mississauga Hospital as a temporary facility with more than 80 beds for COVID-19 patients.

Workers on duty are seen near the modular structure on the grounds of Trillium Health Partners (THP) Mississauga Hospital in Mississauga, Ontario, Canada, April 11, 2020. A new modular structure is on construction on the grounds of THP Mississauga Hospital as a temporary facility with more than 80 beds for COVID-19 patients.