S.C. Code § 44-29-200
Any board of education, school trustees, or other body having control of a school, on account of the prevalence of any contagious or infectious diseases or to prevent the spread of disease, may prohibit or limit the attendance of any employee or student at any school or school-related activities under its control. The decision to prohibit or limit attendance must be based on sound medical evidence and must comply with the official procedures adopted by the board for this purpose. Before lifting a prohibition or restriction on attendance, the board may require a satisfactory certificate from one or more licensed physicians that attendance is no longer a risk to others attending school.
Any board acting in good faith and in compliance with the provisions of this section is not liable for damages which may result from its decision. Nothing in this section relieves a board from its responsibilities to provide a student with educational programs and services appropriate to his needs as required by Section 59-20-30.
S.C. Code § 44-29-200