(1) Any person mentioned in this part, unless the penalty is prescribed in this part, who willfully neglects or refuses to comply with any of the provisions of this part, commits a Class C misdemeanor. Upon complaint from any health authority, it is the duty of the district attorney general to prosecute the violation of this part.
(2) Any person having reason at the time to believe that such person is afflicted with any contagious disease who voluntarily goes upon any public highway or street, or to any place at which people are accustomed to collect or assemble, or who enters or goes on board any steamboat, railroad car or other public conveyance, or any person who knowingly aids or assists anyone thus to offend, commits a Class C misdemeanor.