. . . . . . "By ???biological sample??? is meant any tissue or material derived from a living or dead human which may contain the target HIV-1 nucleic acid, including, for example, peripheral blood or bone marrow, plasma, serum, cervical swab samples, biopsy tissue including lymph nodes, respiratory tissue or exudates, gastrointestinal tissue, urine, feces, semen or other body fluids, tissues or materials." .