- https://www.cdc.gov/coronavirus/2019-ncov/hcp/respirator-use-faq.html
- https://www.gov.nl.ca/covid-19/
- https://www.811healthline.ca/covid-19-self-assessment/
- https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection/prevention-risks.html
- https://www.canada.ca/en/public-health/services/publications/diseases-conditions/self-monitoring-self-isolation-isolation-for-covid-19.html
- https://www.canada.ca/en/public-health/services/diseases/coronavirus-disease-covid-19.html