The Gastrointestinal Society has created a COVID-19 Resource Hub.  Information about it says:

“Everything you need to know about COVID-19, including information on symptoms, prevention, testing, treatments, and variants is available in one place at The site includes active links to each province and territory so you can quickly learn your eligibility for vaccines, testing, and medications, as well as the availability of services in your area, no matter whether you have a gastrointestinal condition or not.”

Of particular interest are: