No operator of an official establishment or other person preparing product in an official establishment shall employ, in any department where any product is handled or prepared, any person showing evidence of a communicable disease in a transmissible stage, or known to be a carrier of such a disease, or while affected with boils, sores, infected wounds, or other abnormal sources or microbiological contaminants.
Okla. Admin. Code § 35:37-11-34