For those of you who needs to do Medical Surveillance, this link could come in handy. All you have to do is to report to the public health in your region after landing. You can choose to do follow up tests and exams at your own expense or wait 3 months until your provincial healthcare covers those costs.
https://www.canada.ca/content/dam/ircc/migration/ircc/english/resources/manuals/bulletins/2011/ob340-tbh-handout-e.pdf
https://www.canada.ca/content/dam/ircc/migration/ircc/english/resources/manuals/bulletins/2011/ob340-tbh-handout-e.pdf