Vaccines are widely available in the US and Canada for walk-in service at medical providers and pharmacies. Many areas are still operating dedicated immunization clinics. Vaccines are safe and effective.
Canada border crossings reopened to vaccinated and tested Americans on 9 August 2021. Testing is required within 72 hours of arrival and must be presented through the ArriveCAN online system. Only PCR tests are accepted.
US border crossings will reopen to vaccinated Canadians on 8 November. Proof of vaccination is required. A “mixed dose” of US or WHO approved vaccines are acceptable. COVID testing is not required for entry to the US by land, but is still required for air travel.
Shared health / Soins communs
If you need other general information not specific to your area, Ars Technica has published an excellent series.