If a foreign national is found to be suffering from a chronic disease which might prove threatening to the other Canadian nationals, or which might put extra burden on Canadian health care and social services, he/she can be held as inadmissible to stay or enter in Canada. The diseases upheld as threatening or a liability on health services include contagious diseases, mental health related ailments, and drug addiction that can cause disruptive and violent behaviour
Any person who is found to be suffering from a chronic disease which might put the life of Canadian nationals under risk or could exhaust Canadian social and health services, will be denied entry to Canada. If any dependent of the principal applicant is found medically inadmissible, the members of the entire family will be denied entry into Canada even if the dependent is not accompanying the family to Canada. The only exemption in this scenario is given to spouses, common-law partners and minors who are being sponsored by Canadian family members.
The assessment of demands on Canadian health and social services is made by considering services including doctor’s consultation, hospital stays, hospital visits, surgeries, therapy sessions, etc. This assessment also includes government-funded support services such as educational support, disability support, mental health services or accommodation services. The immigration officers review the expenses on each of the services that might be availed by the individual, and also determine if such services will be available easily.
Medical inadmissibility is assessed by taking into account if the foreign national will cause excessive demand on Canadian health and social services over next five years (ten years in some specific cases).
To decide such cases there are public policies defining how much health care demand is permissible. This figure is subject to change as Canadian Immigration laws change frequently. Latest guidelines must be enquired when applying.