Any physician who shall, after having knowledge or information that any person is or may be an infected person, sell, give or furnish to such infected person, or to any other person for such infected person, a discharge from treatment, or written instrument or statement pronouncing such infected person cured, before such infected person is actually cured of such sexually transmitted infection (STI), shall be guilty of a misdemeanor. Provided, however, that no person who is infected with an STI but who has received treatment adequate to render the person noninfectious shall be denied a permit to work, because of the infection, in those categories of employment where permits to work are required by state law or local ordinance.