Pfizer and Moderna: is there a difference? Is it ok to get 2 different mRNA vaccines for my COVID-19 series?
Why is it that Pfizer and Moderna COVID-19 vaccines are interchangeable for adults, but only Pfizer is approved for children?
How do we know that mixing COVID-19 vaccine brands is ok? How do we know it’s safe and it works just as well?
Is “shedding” a concern? Can you shed the COVID-19 virus if you get vaccinated?
Should I be worried if I don’t get any side-effects? Does it mean the vaccine didn’t work?
Can I get the COVID-19 vaccine while I am menstruating (having my period)? Will it affect my cycle? Will it make my period heavier?
Would a previous severe allergic reaction to ethylene glycol be a contraindication to getting the Pfizer vaccine containing PEG?
Will immunity to adenoviruses (that cause the common cold in humans) interfere with my immune response to the COVID-19 vaccines? (since some vaccines are using the adenoviruses to deliver the genetic material to the immune cells).
If I had an allergic reaction (non life-threatening) to one of the ingredients in the COVID-19 vaccine in the past, what should I do?
What are the common side effects of the COVID-19 vaccine? If I have a side effect do I need to report it? Are the side effects contagious? Should I be worried if I get side-effects from the COVID-19 vaccine?
Should I take ibuprofen (e.g. Advil®) or acetaminophen (e.g. Tylenol®) for side effects from the COVID-19 vaccine or will it change the effectiveness of the vaccine? If I took medications beforehand do I need to get the vaccine again or have antibody testing to make sure it worked?
Can I get COVID-19 from the vaccine?
Do the mRNA vaccines cause Antibody Dependent Enhancement (ADE) with COVID-19 disease?
I had COVID-19 disease and I still have symptoms (I am a COVID long hauler). Will getting the vaccine make my symptoms worse? Is it safe for me to get the vaccine?
Are there certain groups of people that can’t safely receive the COVID-19 vaccines because of their health condition? (e.g., someone with polio, cystic fibrosis or cerebral palsy).
Do any of the vaccines use aborted fetuses as an ingredient?
Is blood an ingredient in any of the vaccines?
Was the development of the COVID-19 vaccines rushed or pushed through? Do we really know it’s safe?
Can an mRNA vaccine alter someone's DNA?
Which COVID-19 vaccines are currently authorized for use in Canada? What are the ingredients of the COVID-19 vaccines?
Are there long-term side effects caused by mRNA COVID-19 vaccines? How do we know?
Which of the COVID-19 vaccines use Polyethylene glycol (PEG)?
Are there any animal products (including pork) in the COVID-19 vaccine? If so, which ones have animal products?
I have mild to severe allergies - is the COVID-19 vaccine safe? What if I have allergies to antibiotics or other medicines?
I’ve had reactions to a vaccine before. Is it safe for me to get the COVID-19 vaccine? Do I need to get the vaccine in a special location, like a hospital?