Last updated May 31, 2021
COVID-19 vaccines are very effective at preventing infection and severe disease. If you are eligible and have not been immunized yet, book your immunization appointment as soon as possible.
The COVID-19 vaccines currently available in Alberta require two doses to provide maximum protection. But even one dose provides some protection.
Once you are immunized, different quarantine rules may apply if you are exposed to a person with COVID-19. This is because you are less likely to get sick or spread the virus to others.
Protection from immunization begins a few weeks after your first dose of the vaccine.
A person is considered partially immunized after 14 days have passed since they’ve received the first of two doses in a two-dose COVID-19 vaccine series.
The risk of becoming sick after exposure to COVID-19 and spreading the virus to others is lower for a partially immunized person.
A person is considered fully immunized after 14 days have passed since they received the second dose in a two-dose COVID-19 vaccine series.
There is very good protection a few weeks after getting your second dose. A second dose of vaccine provides longer lasting immunity against COVID-19.
There are currently no one-dose COVID-19 vaccines being provided in Alberta, however, a person is considered fully immunized after 14 days have passed since they received the only dose in a one-dose COVID-19 vaccine series.
If you have not received the COVID-19 vaccine, or it has been 14 days or less since your first dose of vaccine in a two-dose series, or 14 days or less since your single dose in a one-dose vaccine series, you are not eligible for a shortened quarantine. Please see Isolation and Quarantine for information and the rules that apply to you.
If you are eligible and have not been immunized yet, book your immunization appointment as soon as possible.
You are considered partially immunized after 14 have passed since you’ve received one dose in a two-dose COVID-19 vaccine series.
If you are partially immunized at the time you are exposed to someone with COVID-19:
When your shortened quarantine ends, you may return to work, school, childcare and other activities. You should continue to monitor yourself for symptoms for 14 days from your last exposure to the person with COVID-19. Avoid non-essential visits to continuing care or acute care settings, limit your contacts, and continue to follow public health measures such as wearing a mask, keeping your distance and washing your hands.
You are considered fully immunized 14 days after you have received the second dose of COVID-19 vaccine in a two-dose vaccine series.
If you are fully immunized at the time you are exposed to someone with COVID-19:
During the 14 days after your exposure to a person with COVID-19, you should continue to follow these guidelines:
If you are immune compromised, please talk to your healthcare provider about testing recommendations and whether you should follow a longer quarantine period.
Shortened quarantine does not apply to international travellers returning to Canada. International travellers must comply with federal quarantine required by the Federal Quarantine Act .
A Medical Officer of Health and the Infection Prevention and Control team responsible for a public health investigation, may direct a close contact to follow a 14-day quarantine period regardless of their immunization status.