Not sure if this would be helpful for those who are required to take Covid tests in order to keep their jobs

Canada - Bill S-201 - An Act to prohibit and prevent genetic discrimination - 2017

Genetic Non-Discrimination Act (GNA)

genetic test means a test that analyzes DNA, RNA or chromosomes for purposes such as the prediction of disease or vertical transmission risks, or monitoring, diagnosis or prognosis. (test génétique)

Genetic test

3 (1) It is prohibited for any person to require an individual to undergo a genetic test as a condition of

(a) providing goods or services to that individual;

(b) entering into or continuing a contract or agreement with that individual; or

(c) offering or continuing specific terms or conditions in a contract or agreement with that individual.

Idem (to the Canadian Human Rights Act)

(3) Where the ground of discrimination is refusal of a request to undergo a genetic test or to disclose, or authorize the disclosure of, the results of a genetic test, the discrimination shall be deemed to be on the ground of genetic characteristics.

Contravention of sections 3 to 5

7 Every person who contravenes any of sections 3 to 5 is guilty of an offence and is liable

(a) on conviction on indictment, to a fine not exceeding $1,000,000 or to imprisonment for a term not exceeding five years, or to both; or

(b) on summary conviction, to a fine not exceeding $300,000 or to imprisonment for a term not exceeding twelve months, or to both.