Control of a Case. A case may not attend a child care facility until: The case's fecal cultures are Shigella-free on two consecutive specimens collected not less than 24 hours apart and not sooner than 48 hours following discontinuation of antibiotics, if antibiotics have been given; or A health officer approves readmission based on the low likelihood of disease transmission. A case, with or without diarrhea, may not participate in occupations involving food handling, patient care, or care of young children or the elderly until: The case's fecal cultures are Shigella-free on two consecutive specimens collected not less than 24 hours apart and not sooner than 48 hours following discontinuation of antibiotics, if antibiotics have been given; or A health officer approves resumption of occupational duties based on the low likelihood of disease transmission. Control of Contacts. A health officer shall require a culture of feces only from a household member or close contact who: Attends a child care facility; or Whose occupation involves: Food handling; Patient care; or Care of young children or the elderly. A contact shall submit for examination two fecal specimens taken at an interval of not less than 24 hours apart. If either of the specimens collected under §B(2) of this regulation is positive for Shigella, the health officer shall consider the contact to be a case, and the control measures specified in §A of this regulation shall apply. Infection Control. A health care provider shall practice standard precautions.