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About the Vaccine Vaccine Effectiveness
Spring 2024 COVID-19 Vaccines XBB.1.5 COVID-19 Vaccine Youth and COVID-19 Vaccines
Side Effects Getting the Vaccine
About the Vaccine
What is the COVID-19 vaccine? |
A vaccine is a medicine that gets your immune system to produce antibodies. Antibodies are proteins trained to recognize the virus and protect your immune system against it. They can be produced after getting vaccinated, but also by being infected with the virus. After getting vaccinated for COVID-19, you develop some immunity to the virus, without having to get COVID-19 first. This is what makes vaccines such powerful medicine. Unlike most medicines, which treat or cure diseases, vaccines keep you from getting sick in the first place. |
How were the vaccines approved for use in Canada? |
Drugs, including vaccines, are regulated under the Food and Drugs Act and regulations. They must meet the regulatory requirements for safety, efficacy and quality before they can be approved for use and distribution in Canada. Health Canada is responsible for approving vaccines. Before approving a vaccine, they look carefully at the:
If there is not enough evidence to support the manufacturer’s safety, effectiveness or quality claims, Health Canada will not authorize the vaccine and the product cannot be sold in Canada. Find out more about Health Canada’s: |
The vaccines were developed so quickly. How can I be sure they are safe? |
Creating a new vaccine usually takes years. However, the COVID-19 vaccines were developed quickly for many reasons, including:
Before any vaccines are available in Ontario, they:
Ontario makes sure vaccines remain safe by:
Once a vaccine is in use, Canada has a strong vaccine safety monitoring system to tell public health authorities about changing trends or unusual reactions that were not reported before. Read more information on vaccines and vaccine authorization updates from the Government of Canada. |
What is an mRNA vaccine and how does it work? |
mRNA stands for Messenger Ribonucleic Acid. mRNA vaccines, such as Pfizer and Moderna, give cells in your body instructions to make part of a harmless a protein from the COVID-19 virus. Once the cells make the protein, the instructions are broken down. The cells display the pieces of protein they have created, then your body recognizes that protein as foreign and develops an immune response. This response will recognize and fight the virus that causes COVID-19 if you are exposed to it later on. mRNA vaccines do not change or affect your own DNA. |
What is a viral vector-based vaccine and how does it work? |
The Johnson & Johnson COVID-19 vaccine, an Ebola vaccine, and many vaccines used for animals are examples of viral vector-based vaccines. These vaccines have a vector, which, in the COVID-19 vaccine, is a non-COVID-19 virus that has become inactive and harmless. The vector delivers "blueprints" to some of our cells, providing instructions to build a protein of the virus that causes COVID-19. The cells build and display that protein, which our immune cells notice as being unfamiliar. Our immune cells produce an immune response and remember that unfamiliar protein so they can recognize and fight against future COVID-19 infections. |
What is a protein subunit vaccine and how do they work? |
Protein subunit vaccines, such as Novavax Nuvaxovid®, contain harmless and purified pieces (proteins) of the virus, which have been specifically selected for their ability to trigger immunity. Protein subunit vaccines are already used for other diseases. An example of an existing protein subunit vaccine is the one for hepatitis B. |
Vaccine Effectiveness
Why do I need so many COVID-19 vaccines? |
Up to date vaccines restore protection that may have decreased since your last dose and keep you protected from severe illness and/or hospitalization from COVID-19. |
Why should I get vaccinated if the COVID-19 infection has a 99% survival rate? |
COVID-19 can be a serious illness for many people, and for some people, symptoms can last for months. The virus can even damage the heart, brain, lungs and increase the risk of long-term health problems. Even young, healthy people can feel unwell for weeks to months following the COVID-19 infection. The short-term side effects of the COVID-19 vaccine are less than the risk and potential long-term health damages caused by the COVID-19 virus. |
Will the COVID-19 vaccine prevent you from getting COVID-19, or will it decrease the severity of the virus if you get infected? |
No vaccine is 100% effective. While COVID-19 vaccines may temporarily increase your protection from becoming infected with COVID-19, this protection can wane significantly over months. However, the vaccines remain very effective at reducing the risk of severe illness for individuals who have contracted COVID-19 and are up-to-date with COVID-19 vaccination. |
Spring 2024 COVID-19 Vaccines
What COVID-19 vaccines are available this spring? |
This spring 2024, the Moderna SPIKEVAX and the Pfizer-BioNTech XBB mRNA COVID-19 vaccines are available for all eligible individuals. Novavax COVID-19 vaccine, a protein subunit vaccine, may also be used for COVID-19 vaccination of individuals 12 and older. All three of these vaccines target the XBB1.5. variant that is expected to produce a stronger immune response to currently circulating COVID-19 variant. |
Who should get the COVID-19 XBB vaccine this spring? |
The following individuals may receive an additional dose this spring:
Receiving a COVID-19 vaccine in spring 2024 is especially important for individuals at increased risk of severe illness from COVID-19 who did not receive a dose during the fall 2023 program. Eligible individuals (as outlined above) may receive an XBB COVID-19 vaccine in spring 2024 if it has been six months from the previous COVID-19 vaccine dose or known SARS-CoV-2 infection (whichever is later). A shorter interval (3 to < 6 months) can be used if recommended by your healthcare provider. |
Why should I get a COVID-19 vaccine this spring? |
For high-risk individuals an additional dose of COVID-19 vaccine is recommended. The COVID-19 mRNA vaccines targeting the XBB.1.5 variant are expected to produce a strong immune response to currently circulating COVID-19 variants. |
I have been getting a vaccine every 3-6 months up until now, is it ok if I do not get the vaccine that frequently? |
Yes, getting a dose every 3-6 months is not routinely recommended for people who have received a primary series and any additional doses they were eligible for. If you meet the spring eligibility criteria and it has been six months since your last vaccine dose, an additional dose is recommended for you. |
I did not get a dose of the XBB COVID-19 vaccine this fall. Can I still get one? |
If you are not at higher risk of severe illness from COVID-19 (as described in the spring eligibility criteria) and have not receive an XBB COVID19 vaccine in fall 2023, you are currently not recommended to receive an additional COVID-19 vaccine dose, unless advised by your health care provider. While the fall campaign was open to all, the spring campaign targets individuals at highest risk of severe illness, complications, and hospitalization from COVID-19. If you are concerned about your own individual risk, speak to your healthcare provider. |
I was infected with COVID-19 this fall and have been waiting to get the XBB COVID-19 vaccine. Can I still get it now that the fall campaign is over? |
If you were infected with COVID-19 this fall and did not get the fall COVID-19 XBB dose because of this, you do not need a dose now that the fall campaign has finished unless recommended by your health care provider. If you are concerned about your individual risk speak to your healthcare provider. |
If I have never been previously vaccinated with a COVID-19 vaccine, am I eligible to get a dose? |
Yes, individuals who have not been previously vaccinated are eligible to receive the COVID-19 vaccine. The number of doses recommended will depend on your age and risk factors. |
Will the spring XBB COVID-19 vaccine protect against current variants? |
Recently circulating variants continue to be antigenically related to the XBB sublineage. The COVID-19 mRNA vaccines targeting the XBB.1.5 variant are expected to produce a strong immune response to currently circulating COVID-19 variants. |
How can I book an appointment? |
Find your closest pharmacy to get a COVID-19 vaccine. |
XBB.1.5 COVID-19 Vaccine
What is XBB.1.5 COVID-19 vaccine? |
The XBB.1.5 COVID-19 vaccine is an updated version of the Bivalent COVID-19 vaccine. It targets the Omicron XBB.1.5 subvariant. It has been authorized by Health Canada. |
Is the XBB.1.5 COVID-19 vaccine safe? |
Health Canada has one of the most rigorous scientific review systems in the world and only approves a vaccine if it is safe, works and meets the highest manufacturing and quality standards. After a thorough and independent scientific review of the evidence, Health Canada determined that the authorized XBB.1.5 vaccine is safe and effective at providing a strong immune response against COVID-19. The benefits of getting vaccinated and being protected against COVID-19 far outweigh the risks of any side effects from the vaccine. COVID-19 infection may cause longer-lasting symptoms and health problems for some people, which is why it is important that individuals stay up to date with their vaccinations. |
Is the XBB.1.5 COVID-19 vaccine better than the bivalent vaccine? |
All Health Canada approved vaccines provide lasting protection against severe outcomes from COVID-19. The XBB.1.5 COVID-19 vaccine may better protect against currently circulating variants. As evidence shows that vaccine protection decreases over time, everyone aged six months and older is encouraged to stay up to date with their vaccinations. |
Children, Youth and COVID-19 Vaccines
Why should children and youth get vaccinated? |
Most children with COVID-19 have mild symptoms or none at all. However, some children with COVID-19 can get very sick. Children can also spread COVID-19 to other people. Vaccinating children protects them from getting sick and reduces virus spread within their household, school and the community. Check out the COVID-19 Vaccines for Children and Youth Fact Sheet to learn more. The vaccine is free, voluntary, safe and it works. |
Do I need a parent to consent or attend my appointment with me? |
Children and youth do not need to attend a clinic with a parent or a guardian, however, families are encouraged to discuss vaccination plans together. Under the provincial Health Care Consent Act (HCCA), there is no minimum age requirement to provide consent for vaccine. COVID-19 vaccines are only provided if informed consent is received from the person to be vaccinated, and as long as they have the capacity to make this decision.
Every vaccine that is given requires informed consent. Informed consent means that before receiving a vaccine, a person understands what the vaccination involves, why it is being recommended, possible side effects, and the risks and benefits if they accept or refuse the vaccine. It includes the opportunity for a safe and open discussion with a healthcare practitioner who will ultimately support their voluntary choice. Trained and experienced nurses are available at our clinics to talk with you and your children about the vaccine and answer any questions or concerns your child may have before giving consent. |
Side Effects
Most medications we take have potential for side effect; however, many of them help keep people alive. The risk of COVID-19 is much worse than the risk of the vaccine.
What are the common side effects from the COVID-19 vaccine? |
The most common side effects are mild to moderate. They include:
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I had side effects with one of my COVID-19 vaccines, should I get further doses to stay up to date? |
Mild to moderate side effects such are relatively common and if you experience them, it is still safe to receive your next dose of COVID-19 vaccine. The most common side effects include:
Allergic or severe reactions to the COVID-19 vaccine are rare. If you experienced an allergic or severe reaction to a vaccine dose, please report it to your health care provider or our non-emergency vaccine intake line at 705-474-1400 ext. 5252. You will be provided with guidance on receiving future doses. |
Are there any serious side effects? |
Serious side effects are very rare. However, should you develop any of the following reactions within three days of receiving the vaccine, seek medical attention right away or call 911 if you are severely unwell:
Rare side effects can be reported to our non-emergency vaccine intake line at 705-474-1400 ext. 5252. |
If someone gets one or more of the side effects from the vaccine will they need to self-isolate and/or get tested since the side effects are on the COVID-19 symptom list? |
Some of the side effects of the vaccine are similar to symptoms of COVID-19 infection. However, side effects from the vaccine should only last a day or two and go away on their own. If you have mild symptoms within the 48 hours after vaccination, there is no need to self isolate, if symptoms:
If you have the above symptoms you are encouraged to wear a mask when out in public and physically distance from others if possible. If you have decreased or loss of smell or taste or more severe symptoms including fever and/or chills, or a new or worsening cough, then you are advised to self-isolate until your symptoms have been resolving for 24 hours (48 hours if the symptoms are gastrointestinal). It is possible that you may have COVID-19 or another infection. Seek medical attention, which may include a COVID test if symptoms are persisting longer than 48 hours after your vaccination, or you really aren’t feeling well and are having difficulty looking after yourself at home. |
What are the long-term side effects of the vaccine? |
The risk of vaccine side effects developing after a few weeks is extremely unlikely. Vaccines do not persist in the body, they get broken down. Our experience with decades of vaccine monitoring, is that no licenced vaccine has shown to have long-term safety problems. Manufacturers are continuing to follow clinical trial participants. They must communicate any potential safety concerns to Health Canada (Health Canada, 2020). Health professionals are required to report adverse events following immunization (AEFIs) to their local Health Unit so that these reactions can be compiled by Public Health Ontario. |
Does the COVID-19 vaccine cause blood clots? |
The viral vector vaccines, including the Johnson & Johnson/Janssen vaccine have been associated with rare blood clots. These are a specific type of blood clot called VITT (Vaccine-Induced Immune Thrombotic Thrombocytopenia), which does not tend to cause strokes, pulmonary embolism (PE) or deep vein thrombosis (DVT). mRNA COVID vaccines have not been associated with an increased risk of blood clots. mRNA vaccines remain the preferred COVID-19 vaccine type for most people, given their superior efficacy and safety profile. |
Does the vaccine cause myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the tissue surrounding the heart)? |
Cases of myocarditis and/or pericarditis in people who received the COVID-19 vaccine are very rare. The benefits of COVID-19 vaccines continue to outweigh their potential risks, as scientific evidence shows that they reduce deaths and hospitalizations due to COVID-19. The Government of Canada encourages people to get vaccinated and to complete their vaccine series as soon as they are eligible. |
Can I get COVID-19 from receiving the vaccine? |
No, the vaccine does not cause COVID-19; however, it does take an average of two weeks for the vaccine to actually protect against COVID-19, so it’s possible someone could still get the virus after receiving the vaccine if they don’t follow public health measures. |
Getting the Vaccine
Do all my doses need to be the same brand? |
No. The National Advisory Committee on Immunization has confirmed getting different brands of COVID-19 vaccine is safe and effective at protecting you and your loved ones from COVID-19 and variants. |
I'm Indigenous. How can I get vaccinated? |
You are welcome to receive a vaccine at our Health Unit if 12 years of age and under. Other options include participating pharmacies, First Nation health centres and Indigenous HUBs. |
I’m pregnant. Should I get the vaccine? |
Yes. It's recommended that all eligible pregnant individuals, at any stage in pregnancy, get vaccinated as soon as possible. Unvaccinated pregnant individuals are at higher risk for hospitalization, ICU admission, mechanical ventilation and death compared to non-pregnant individuals. COVID-19 infections during pregnancy can be very serious, and the benefits of vaccination outweigh the risks. |
Should I get the vaccine if I'm breastfeeding? |
Yes. COVID-19 vaccination is safe, effective and recommended for individuals who are breastfeeding. The mRNA from vaccines doesn’t transfer in breast milk, but vaccinated breastfeeding individuals produce antibodies which fight the virus that causes COVID-19. These antibodies do transfer in the breast milk and provide protection to the infant. Read more. |
Is the vaccine mandatory? |
Some places, such as hospitals, home and community service providers and non-essential services may require employees, contactors, students and volunteers to be up to date with COVID-19 vaccinations. |
How long does it take after I'm vaccinated to be protected against COVID-19? |
Studies have shown that the vaccine starts to take effect approximately 14 days after the first dose, and provides even more protection seven to 14 days after the second dose. |
I just got vaccinated for something else. Can I still get the COVID-19 vaccine now? |
Yes. The COVID-19 vaccine can be received at the same time as, or at any time before or after non-COVID-19 vaccines. There are two exceptions. COVID-19 vaccines should not be co-administered with the mpox vaccine or adult RSV vaccines. |
Can I get the flu shot and the latest COVID-19 vaccine (XBB.1.5) at the same time? |
Yes. Individuals six months and older, may receive a COVID-19 vaccine simultaneously with (i.e., same day), or at any time before or after flu vaccines. |
If I had a reaction to a different vaccine in the past, can I still get the COVID-19 vaccine? |
If you had an allergic reaction within four hours and/or anaphylaxis that happened with a vaccine or injectable medication that does not contain a component or cross-reacting component of the COVID-19 vaccines, you can receive the COVID-19 vaccine as long as you are observed for at least 30 minutes immediately afterwards. If you're unsure, check with your doctor or health care provider. They will look at your medical records and help you make the decision. |
Allergies
Is it acceptable for someone with food or seasonal allergies to receive the COVID-19 vaccine? |
Yes. People with a history of significant allergic reactions and/or anaphylaxis to any food, drug, venom, latex or other allergens not related to the COVID-19 vaccine can get the COVID-19 vaccine followed by observation for at least 15 minutes. Anyone with allergy issues like allergic rhinitis, asthma and eczema can also receive the vaccine followed by observation for a minimum of 15 minutes. |
I had an allergic reaction to a previous dose of the COVID-19 vaccine. Should I get my next dose? |
If you had anaphylaxis or a severe or immediate (within one hour) allergic reaction to a previous dose of a COVID-19 vaccine or to any of its components, you should not receive the COVID-19 vaccine in a general vaccine clinic. A referral to an allergist/immunologist is recommended to assess the method for possible (re)administration of a COVID-19 vaccine. If you had a non-severe allergic reaction which occurred more than one hour after receiving a previous dose of a COVID-19 vaccine or any of its components, an evaluation by an allergist/immunologist may be recommended to confirm you can safely receive the vaccine. For individuals with non-severe and delayed reactions to their previous vaccine, vaccination can usually proceed with an extended observation period of at least 30 minutes. All Health Unit clinics are staffed with individuals trained to assess and respond appropriately to allergic reactions including anaphylaxis. Documentation of the consultation with the allergist/immunologist must be provided to the clinic and include:
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Have more questions?
Contact the Health Unit at 705-474-1400 or 1-800-563-2808.