No person, while infected with a disease in a communicable form that can be transmitted by foods or who is a carrier of organisms that cause such a disease or while affected with a boil, an infected wound, or a respiratory infection, shall work in a retail food store in any capacity in which there is a likelihood of such person contaminating food or food-contact surfaces with pathogenic organisms or transmitting disease to other persons.

Employees engaged in direct hand contact with food shall thoroughly wash their hands and the exposed portions of their arms with soap or detergent and warm water before starting work, and as often as necessary during work to keep them clean. Employees shall keep their fingernails trimmed and clean.