A. An owner may not knowingly permit an individual to enter the water of a public pool or spa who has:
(1) An infectious or contagious disease that may be transmitted through water;
(2) An open cut, blister, or other lesion; or
B. An owner or operator may not prohibit an individual from entering the water of a public pool or spa if a physician certifies that the individual's condition is not infectious or contagious by waterborne transmission.