No person suffering with any reportable disease or who resides in a house in which there exists a case of smallpox, scarlet fever, dysentery, or typhoid fever shall work, or be permitted in or about any dairy or any establishment for the manufacture of food products until the local or state health authority has given such a person a written certificate to the effect that no danger to the public will result from his or her employ or presence in such establishment.
S.C. Code Regs. § 61-20.16