Laboratory Tests.

(a)

Laboratory tests to determine HIV infection shall be any FDA approved HIV test which detects infection by the probable causative agent of AIDS. Laboratory tests shall include, but not be limited to, the enzyme-linked immunosorbant assay (ELISA) using antigens derived from disrupted HIV. The ELISA kit instructions shall be followed. Initially reactive ELISA specimens shall be retested in accordance with the kit's instructions using the same specimen with the same manufacturer's kit.

(b)

Since falsely positive tests do occur, and the implications of a positive test are serious, additional tests which are more specific, such as the Western Blot or the immunofluorescent assay (IFA), shall be conducted following repeatedly reactive ELISA results. Reactive test results by ELISA shall not be reported without conducting one of the supplemental tests, and confirming that the result is specific and truly positive.