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COVID-19 vaccine – protein-based (age 12 years and older)

Learn about the COVID-19 protein-based vaccine, doses, side effects, and safety.

COVID-19 protein-based vaccine

The Novavax Nuvaxovid XBB.1.5 vaccine is the COVID-19 protein-based vaccine available in Alberta. It is an updated protein-based vaccine that helps protect you against getting seriously ill from COVID-19, including XBB variants that are currently spreading.

Who should get this vaccine

Everyone is at risk of COVID-19. You can get an XBB.1.5 protein-based COVID-19 vaccine if you are age 12 years or older. COVID-19 vaccines are free.

Who should not get this vaccine

You may not be able to get the XBB.1.5 protein-based COVID-19 vaccine if:

  • You have an allergy to any part of the vaccine.
  • You had a severe (serious) or unusual side effect after this vaccine or one like it.
  • You are under age 12 years.

If you have allergies or have had a side effect to this vaccine, check with your doctor or a public health nurse before you get the vaccine.

Although you can get the vaccine if you have a mild illness such as a cold or fever, you should stay home until you are feeling better to prevent spreading your illness to others.

Check with your healthcare provider about when you can get the protein-based COVID-19 vaccine if you had COVID-19 in the past.

Be sure to talk to your doctor before you get the protein-based COVID-19 vaccine if:

  • You have a weak immune system (because of a medicine you take or a health problem).
  • You have had a stem cell or organ transplant.
  • You are getting CAR T-cell therapy (a type of cancer treatment).
  • You have a history of myocarditis or pericarditis within 6 weeks of getting a dose of COVID-19 vaccine.

Already had COVID-19

If you have already had COVID-19, it is not yet known how long your protection will last or how much protection you will have against variants. It is important to get a COVID-19 vaccine even if you have already had the virus.

The vaccine may give you better protection if you wait a while after having COVID-19 and then get a vaccine. How long to wait depends on your health history, the number of doses of COVID-19 vaccine you have had, and your risk of getting very sick from COVID-19.

If you have had COVID-19 in the past, check with your healthcare provider about when to get a COVID-19 vaccine.

Pregnancy and breastfeeding

When you are pregnant, you have a higher risk of getting very sick from COVID-19. Getting a COVID-19 vaccine lowers your risk of getting seriously ill from the virus.

You can get a protein-based COVID-19 vaccine if you are pregnant or breastfeeding. However, research shows that mRNA vaccines are the safest type of COVID-19 vaccines to get during pregnancy. There is more to learn about getting a protein-based COVID-19 vaccine when you are pregnant or breastfeeding.

If you are pregnant or breastfeeding, it is recommended that you talk to your healthcare provider before getting a protein-based COVID-19 vaccine.

Vaccines

If you are age 12 years and older, you can get the Novavax XBB.1.5 protein-based vaccine.

There is no information about how well an XBB.1.5 protein-based COVID-19 vaccine works after getting an mRNA COVID-19 vaccine. However, information from the original COVID-19 vaccines shows no safety concerns. It is reasonable to expect the same from the XBB.1.5 protein-based vaccine after an mRNA vaccine, but there is still more to learn. If you have already had an mRNA COVID-19 vaccine, information shows that you may get better protection if you continue with an mRNA vaccine rather than getting a protein-based vaccine.

Doses

Healthy immune system

You need 1 dose of the XBB.1.5 protein-based COVID-19 vaccine if you have never had a COVID-19 vaccine.

If you have already had 1 or more doses of a non-XBB.1.5 COVID-19 vaccine, you can get 1 dose of the protein-based XBB.1.5 vaccine at least 3 months after your last dose of COVID-19 vaccine, regardless of how many doses you have already had.

If you have already had an mRNA XBB.1.5 COVID-19 vaccine, you are not eligible for a protein-based XBB.1.5 vaccine.

Weak immune system

Research has shown mRNA vaccines provide the best protection for people with a weak immune system. There is less information available about the use of the protein-based vaccine for people who have a weak immune system. Talk to your healthcare provider about which vaccine is best for you.

You may have a weak immune system if:

  • You have had or will have an organ or stem cell transplant.
  • You have kidney disease and need dialysis.
  • You have acquired immunodeficiency syndrome (AIDS).
  • You take certain medicines that weaken your immune system.

If you have a weak immune system, the number of doses you need depends on your age and how many COVID-19 vaccines you have had in the past.

If you have a weak immune system:

  • You need 2 doses of an XBB.1.5 vaccine if you have never had COVID-19 vaccine of any type.
  • You need 1 or 2 doses of an XBB.1.5 vaccine to total a 3-dose series if you have already had 1 or 2 doses of any COVID-19 vaccine.
  • You need 1 dose of an XBB.1.5 vaccine at least 3 months after your last dose if you have already had 3 or more doses of a non-XBB.1.5 COVID-19 vaccine.

Studies have shown that extra doses may give better protection to adolescents and adults with a weak immune system. In children with a weak immune system, extra doses may also give better protection, but research is still happening to learn more.

If you have had a stem cell transplant or are getting CAR T-cell therapy (a type of cancer treatment), talk to your healthcare provider about when you can get a dose of XBB.1.5 vaccine and how many doses you need.

Additional XBB.1.5 COVID-19 vaccine dose

People who are at a higher risk of getting very sick from COVID-19 can get an additional dose of the XBB.1.5 COVID-19 vaccine, including the protein-based COVID-19 vaccine. (The protein-based vaccine is only for those age 12 years and older.)

You are at higher risk if:

  • You are age 65 years and older.
  • You are age 18 years and older and you live in a care facility, like a nursing home.
  • You are age 6 months and older and have a weak immune system.
  • You are age 6 months and older and are an Indigenous person.

You can get the additional dose at least 6 months from your last XBB.1.5 COVID-19 vaccine dose. If you live in a care facility like a nursing home, you can get the additional dose at least 3 months from your last XBB.1.5 COVID-19 vaccine dose.

Off-label use

"Off-label use" means the vaccine is used differently than the way it was originally approved. Vaccine experts support the following off-label uses for XBB.1.5 protein-based COVID-19 vaccines and have no safety concerns:

  • You have already completed a COVID-19 vaccine series and you get a dose of the XBB.1.5 protein-based vaccine less than 6 months later.
  • You have already had 1 or more doses of a non-XBB.1.5 vaccine, and you get 2 or more doses of the protein-based XBB.1.5 vaccine.
  • You have never had a COVID-19 vaccine before, and you get 1 dose of the XBB.1.5 protein-based vaccine as a complete vaccine series.
  • You get 3 or more doses of the XBB.1.5 protein-based vaccine.

Consent for immunization

Children age 12 years and older can get the protein-based COVID-19 vaccine. Consent for a COVID-19 vaccine for children under age 18 years is provided by a parent or guardian. If a parent or guardian cannot be at the appointment, they can use the consent form at COVID-19 consent for children under 18. In some cases, children under age 18 years may be able to give their own consent.

Alternate decision-makers (could be an agent, guardian, specific decision-maker, or co-decision-maker for another person) can use this consent form when they cannot attend an immunization appointment with the person they are authorized to make decisions for. Alternate decision-makers must also include (with the consent form) a copy of documents showing they are the person’s authorized decision-maker.

The person being immunized must bring the completed and signed consent form to their appointment.

Current as of: April 15, 2024
Author: Provincial Immunization Program, Alberta Health Services
Our work takes place on historical and contemporary Indigenous lands, including the territories of Treaty 6, Treaty 7 & Treaty 8 and the homeland of the Métis Nation of Alberta and 8 Métis Settlements. We also acknowledge the many Indigenous communities that have been forged in urban centres across Alberta.