Refer to the BC Centre of Disease Control Environmental Health Officer
Employers must inform all workers about the importance of not coming to work if they are sick or have symptoms. Once a person is diagnosed with COVID-19, a Public Health Officer will provide instructions for the workplace on what must be done. It is possible that the workplace will be closed temporarily for deep cleaning and then reopen once it is safe to do so.
http://www.bccdc.ca/health-info/diseases-conditions/covid-19