I don't think Remdesivir has been approved for use in Canada. The WHO has said it has little to no benefits to COVID-19 patients. However seniors and others are receiving dexamethasone, a corticosteroid used to fight inflammation.
Canada's mortality rate for the virus has dropped over the past 10 months by about 55% and is currently about 2.7%. However the number of COVID-19 cases is now higher than earlier this year so the lower mortality rate is counteracted by the higher number of cases.
There are no cures for any virus. It may be semantics but vaccines don't cure viruses. There are drugs that fight infections caused by viruses. The new COVID-19 vaccines don't prevent you from getting SARS-CoV-2, and may not prevent you from being contagious, but they should prevent the virus from progressing to COVID-19.
The seasonal flu vaccine doesn't prevent you from catching the flu virus. It prevents the flu virus from making you sick. For comparison, most COVID-19 vaccines are at least 90% effective but seasonal flu vaccines are around 50% effective. Hopefully everyone is keeping up with the exciting
FluWatch 2020