From an article in the CTV news website published Sunday, February 6, 2022:

Legal challenges of employer vaccine mandates and health measures are being tossed out as arbitrators in Canada largely side with the need to maintain safe workplaces during a pandemic, legal experts say.

Most of the cases with rulings so far involve employee grievances in unionized workplaces, which have an expedited decision-making process compared with the courts, they say.

A scan of decisions issued in recent weeks shows arbitrators are largely erring on the side of caution and minimizing health risks to employees and the public, experts say. Read more.