Health grounds
Source: https://laws-lois.justice.gc.ca/eng/acts/I-2.5/page-9.html#docCont
- 38(1) A foreign national is inadmissible on health grounds if their health condition
- (a) is likely to be a danger to public health;
- (b) is likely to be a danger to public safety; or
- (c) might reasonably be expected to cause excessive demand on health or social services.
- Marginal note: Exception
(2) Paragraph (1)(c) does not apply in the case of a foreign national who
- (a) has been determined to be a member of the family class and to be the spouse, common-law partner or child of a sponsor within the meaning of the regulations;
- (b) has applied for a permanent resident visa as a Convention refugee or a person in similar circumstances;
- (c) is a protected person; or
- (d) is, where prescribed by the regulations, the spouse, common-law partner, child or other family member of a foreign national referred to in any of paragraphs (a) to (c).
Perhaps you are not aware of the costs of hep C treatment. Not saying he will be 100% refused but it is an incredibly large omission.