CANVAS-COVID Study Results
Results as of: April 19, 2023 | View adult results
CANVAS-COVID Kids:
Monitoring the safety of COVID-19 vaccines in Canada
Vaccination dose received and survey completed:
DOSE 1
survey completed
249,592
DOSE 2
survey completed
128,871
What is a health event?
Health events are any changes to your health after getting vaccinated, which may include worsening of an existing health condition.
Dose 1:
46%
Dose 2:
47%
of people experienced pain, swelling, or redness at the injection site
After dose 1:
94%
of people did not develop any other health events within 7 days of receiving their first dose
96%
of people did not develop a new health event within 7 days that prevented daily activities,
work or required a medical visit
After dose 2:
95%
of people did not develop any other health events within 7 days of receiving their second dose
97%
of people did not develop a new health event within 7 days that prevented daily activities,
work or required a medical visit
Most frequent other health events reported:
Dose 1:
Dose 2:
2.7%
2.8%
Flu-like symptoms
(such as fatigue, muscle ache, feeling unwell)
2.0%
2.1%
Headache or migraine
1.5%
1.4%
Nausea, vomiting, diarrhea
1.4%
1.5%
Fever
| Dose 1 | Dose 2 | Symptoms |
|---|---|---|
|
2.7% |
2.7% |
Flu-like (such as fatigue, muscle ache, feeling unwell) |
|
1.9% |
2.2% |
Headache or migraine |
|
1.5% |
1.3% |
Nausea, vomiting, diarrhea |
|
1.3% |
1.5% |
Content |